A suspension modification designed for Chevrolet and GMC vehicles and SUVs manufactured between 1973 and 1987, this specific package raises the automobile’s physique by two inches. It sometimes contains elements reminiscent of lifted springs, blocks, or torsion bar keys, and longer shocks to accommodate the elevated journey top. These kits are particularly engineered to suit the chassis and suspension geometry of those traditional automobiles.
Putting in such a modification presents a number of benefits, together with enhanced floor clearance, permitting for bigger tires and improved off-road functionality. It additionally contributes to a extra aggressive aesthetic. Traditionally, modifications like this had been in style amongst truck fans in search of each improved efficiency and a definite look for his or her automobiles. The supply of those kits demonstrates continued curiosity in customizing and restoring these traditional vehicles.
The following sections will delve into particular facets of choosing, putting in, and sustaining suspension raise programs for these vehicles, together with issues for journey high quality, dealing with, and potential modifications to associated elements.
1. Journey High quality
The choice to raise a ’73-’87 Chevy truck with a two-inch raise inevitably invitations a dialog about journey high quality. The factory-tuned suspension, fastidiously engineered for a selected steadiness of consolation and functionality, faces alteration. Whereas the raise would possibly provide enhanced off-road potential or a extra imposing stance, the inherent traits of the journey are topic to alter. The unique springs, shocks, and suspension geometry are calibrated to work in concord; introducing raise blocks or modified springs disrupts this equilibrium. A stiffer journey would possibly consequence, transmitting extra street imperfections on to the occupants. The delicate nuances of bump absorption, as soon as a trademark of those traditional vehicles, could turn out to be much less forgiving.
Contemplate the widespread situation: A ’78 K10, initially a farm truck, undergoes a two-inch raise. The proprietor, in search of to accommodate bigger tires for improved traction in muddy fields, opts for a budget-friendly package. Nonetheless, the ensuing journey transforms from compliant to jarring, making even routine journeys to city uncomfortable. This illustrates a direct consequence: neglecting the interconnectedness of suspension elements can severely compromise the driving expertise. Matching the raise with acceptable shocks, designed to enhance the altered spring price, turns into paramount. Equally, consideration have to be paid to the angles of management arms and the observe bar to mitigate potential bump steer and preserve predictable dealing with.
Finally, preserving an inexpensive journey high quality with a two-inch raise on a ’73-’87 Chevy requires a holistic strategy. The collection of the raise package itself is just the start line. Cautious consideration have to be given to the selection of shocks, the situation of present suspension elements, and the willingness to put money into obligatory supporting modifications. The objective shouldn’t be merely to lift the truck, however to take action in a fashion that minimizes the sacrifice in consolation and management, guaranteeing that the elevated stance enhances, fairly than detracts from, the general driving expertise.
2. Tire Clearance
For a lot of homeowners of ’73-’87 Chevrolet and GMC vehicles, the need for bigger tires is a siren tune. The factory-equipped rubber, typically deemed insufficient for the duty at hand, pales compared to the aggressive stance and improved traction provided by a extra substantial set. A two-inch suspension raise turns into the important thing to unlocking this potential, a gateway to a world of enhanced functionality and visible attraction. Tire clearance, on this context, ceases to be a mere technical specification; it transforms into an emblem of aspiration, a tangible illustration of the truck’s enhanced identification.
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The Preliminary Phantasm
At first look, the two-inch raise seems to be an easy answer. The extra area appears enough to accommodate tires that may in any other case rub in opposition to the fenders or suspension elements. Nonetheless, the satan lies within the particulars. Tire sizes are hardly ever absolute; variations in manufacturing and tread patterns can considerably alter their precise dimensions. A tire marketed as a 33-inch could, in actuality, measure nearer to 32.5 and even 33.5 inches. This discrepancy, seemingly insignificant, could be the distinction between a profitable modification and a irritating encounter with persistent rubbing. A ’77 Blazer proprietor realized this the arduous approach, discovering that his chosen 33s scraped the inside fenders throughout full turns, regardless of the marketed two-inch raise. The preliminary phantasm of ample clearance can rapidly shatter below the load of actuality.
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The Offset Issue
Past the tire’s diameter, the wheel’s offset performs an important function in figuring out clearance. Offset dictates how far the wheel and tire meeting extends outward from the hub. A wheel with a adverse offset will push the tire additional away from the suspension however nearer to the fender edge. Conversely, a constructive offset will tuck the tire nearer to the suspension, probably creating rubbing points on the management arms or sway bar. Contemplate a ’85 C10 pickup fitted with aftermarket wheels boasting an aggressive adverse offset. Whereas the raise supplied the mandatory vertical clearance, the tires now protruded past the fenders, requiring the addition of fender flares to keep up authorized compliance and forestall injury from street particles. The offset issue is a important, but typically ignored, component within the tire clearance equation.
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The Artwork of Compression
Static clearance, measured when the truck is stationary, is just half the story. Throughout operation, the suspension undergoes compression because it encounters bumps and uneven terrain. This compression reduces the accessible clearance, probably resulting in rubbing even with seemingly satisfactory area below regular situations. Off-road fans are notably conversant in this phenomenon. A truck would possibly seem completely succesful on a paved street, solely to expertise vital tire rubbing throughout a weekend tour on a rocky path. The quantity of compression varies relying on the spring price, shock absorber damping, and the general weight distribution of the automobile. Addressing compression-related rubbing typically necessitates trimming the fenders or additional rising the suspension raise, compromising the unique objective of a modest two-inch elevation.
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The Steering Cease Consideration
One other side affecting tire clearance is the steering cease. These mechanical limiters forestall the tires from rubbing in opposition to the body or suspension elements throughout excessive steering angles. When bigger tires are put in, even with a raise, the steering stops may have adjustment to stop rubbing at full lock. Nonetheless, decreasing the steering angle additionally diminishes the truck’s turning radius, probably making it harder to maneuver in tight areas. Discovering the precise steadiness between tire clearance and steering maneuverability requires cautious consideration and, in some circumstances, aftermarket steering cease limiters to fine-tune the vary of movement.
These interwoven aspects underscore the complexity of reaching optimum tire clearance with a two-inch raise on a ’73-’87 Chevy truck. It’s a course of that extends past the straightforward act of putting in a raise package. A profitable end result hinges on a radical understanding of tire dimensions, wheel offset, suspension dynamics, and steering limitations. The pursuit of bigger tires, subsequently, turns into a journey of cautious planning, exact execution, and a willingness to adapt to the unexpected challenges that invariably come up.
3. Set up Complexity
The attract of a two-inch raise on a ’73-’87 Chevy or GMC truck typically overshadows a important side: the set up complexity. Whereas the promise of enhanced floor clearance and an aggressive stance is attractive, the precise technique of reaching this transformation can vary from an easy weekend challenge to a irritating ordeal demanding specialised instruments and experience. The perceived simplicity of a two-inch raise belies the potential for unexpected challenges lurking beneath the floor.
Contemplate the story of a ’76 K5 Blazer, acquired with visions of conquering rugged trails. The proprietor, a seasoned mechanic with a well-equipped storage, approached the two-inch raise set up with confidence. Nonetheless, the challenge quickly revealed hidden intricacies. Many years of rust and corrosion had fused bolts, turning easy duties into laborious battles. The unique shocks, seized in place, required chopping torches to take away. The manufacturing facility springs, weakened with age, proved tough to compress and reinstall. What started as a Saturday afternoon endeavor stretched right into a week-long wrestle, punctuated by journeys to the components retailer and annoyed calls to fellow fans. This expertise underscores an important level: the age of those vehicles introduces a variable that transcends the inherent design complexity of the raise package itself. The situation of present {hardware} and elements considerably impacts the benefit, or problem, of the set up course of.
Moreover, the particular sort of two-inch raise package chosen contributes on to the complexity. A easy block raise, whereas seemingly easy, can introduce driveline vibrations if not correctly aligned and accompanied by obligatory modifications, reminiscent of shims or a service bearing drop. A whole spring substitute package, however, requires extra in depth disassembly and reassembly of the suspension system. Whatever the strategy, correct torque specs are important to make sure security and forestall untimely put on. The set up directions, typically generic and missing intimately, can go away even skilled mechanics scratching their heads. Finally, a sensible evaluation of 1’s mechanical expertise, entry to instruments, and willingness to speculate the mandatory time is paramount earlier than embarking on this seemingly easy modification. Overlooking the set up complexity can remodel a dream of enhanced functionality right into a nightmare of frustration and potential mechanical points.
4. Part Compatibility
The narrative of upgrading a ’73-’87 Chevy truck with a two-inch raise is incomplete with out acknowledging the pivotal function of element compatibility. It’s not merely about bolting on new components; it’s about guaranteeing that these components work harmoniously with the prevailing system. A failure to contemplate this precept can remodel a well-intentioned improve right into a supply of recurring mechanical woes. Contemplate a ’84 Suburban, meticulously maintained however exhibiting its age. An proprietor, keen to enhance its stance, installs a raise package sourced from various producers, enticed by aggressive pricing. The brand new springs, stiffer than anticipated, overwhelm the unique shocks, resulting in a bouncy, uncontrolled journey. Moreover, the altered suspension geometry strains the getting old ball joints, accelerating their put on and necessitating substitute far before anticipated. It is a direct consequence of neglecting element compatibility: a cascade of unintended results triggered by the introduction of mismatched components.
The chain response extends past instant efficiency. The altered driveline angle, a delicate however important issue, introduces vibrations at freeway speeds. These vibrations, initially dismissed as a minor annoyance, step by step weaken the U-joints and ultimately result in a catastrophic failure on a protracted street journey. The price of the tow, the restore, and the misplaced trip time far exceeds the preliminary financial savings from the budget-priced raise package. This emphasizes the sensible significance of understanding {that a} two-inch raise impacts extra than simply journey top; it influences the whole system, from the springs and shocks to the driveline and steering elements. Correct element compatibility calls for a holistic strategy, contemplating the interaction of every component and guaranteeing that the chosen components complement one another.
In essence, the set up of a two-inch raise is a systems-level modification. A profitable end result hinges on a cautious collection of elements designed to work collectively, mitigating potential stresses and preserving the general integrity of the automobile. The challenges inherent in guaranteeing compatibility underscore the significance of thorough analysis, consulting with skilled professionals, and prioritizing high quality over price. The long-term reliability and efficiency of the truck rely upon this meticulous consideration to element, remodeling what might be a supply of fixed frustration right into a testomony to knowledgeable decision-making and mechanical foresight.
5. Alignment Precision
The set up of a two-inch suspension raise on a ’73-’87 Chevrolet truck initiates a ripple impact all through the automobile’s geometry, demanding a important reassessment of alignment precision. What was as soon as a factory-calibrated system, designed for a selected journey top and cargo distribution, now faces alteration. The consequence of neglecting correct alignment following this modification extends past mere tire put on; it impacts dealing with, stability, and the longevity of steering and suspension elements. A misalignment, nevertheless slight, introduces uneven stress, accelerating the degradation of ball joints, tie rod ends, and wheel bearings. The delicate however persistent pull to at least one facet turns into a each day reminder of the unresolved imbalance, a relentless pressure on the motive force and the automobile.
Contemplate the case of a ’79 C10 pickup, lifted with the intention of accommodating bigger tires for improved off-road excursions. The proprietor, targeted solely on the visible transformation, ignored the need of a post-lift alignment. Inside months, the tires exhibited noticeable put on on their outer edges, a telltale signal of extreme constructive camber. The truck’s dealing with deteriorated, changing into noticeably unstable throughout cornering. A subsequent go to to a professional alignment specialist revealed a major deviation from manufacturing facility specs. The technician, after meticulously adjusting camber, caster, and toe, restored the truck’s dealing with to a semblance of its authentic state. The episode served as a harsh lesson within the interconnectedness of suspension elements and the important function of alignment precision in sustaining automobile integrity.
In abstract, the pursuit of an elevated stance on a ’73-’87 Chevy truck, whereas interesting, have to be tempered with a dedication to correct alignment. It’s not a mere afterthought however an integral element of the lifting course of. Neglecting this significant step invitations a cascade of issues, compromising dealing with, accelerating element put on, and in the end diminishing the general driving expertise. The funding in knowledgeable alignment, carried out by a educated technician, represents a safeguard in opposition to these potential pitfalls, guaranteeing that the lifted truck not solely seems to be the half but additionally performs as supposed.
6. Aesthetic Enhancement
For homeowners of Chevrolet and GMC vehicles produced between 1973 and 1987, the applying of a two-inch raise package typically transcends mere performance, evolving into a press release of particular person expression and a tribute to a traditional design. This modification, whereas providing sensible advantages, serves as a robust device for aesthetic enhancement, remodeling a utilitarian automobile into an emblem of rugged individualism and timeless attraction.
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Stance and Proportion
The 2-inch raise subtly alters the truck’s stance, making a extra commanding presence. The elevated journey top visually separates the physique from the wheels, accentuating the tire measurement and contributing to a extra aggressive profile. A ’82 K10, as soon as unassuming in its inventory configuration, features a newfound assertiveness with the addition of the raise, its strains showing extra outlined and purposeful. The raise corrects the manufacturing facility rake, leveling the truck and enhancing its total steadiness. The aesthetic enchancment lies not in dramatic transformation however within the refinement of present proportions.
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Wheel and Tire Integration
The added clearance afforded by the raise facilitates the set up of bigger, extra visually hanging wheels and tires. This enables homeowners to personalize their vehicles with a big selection of types, from traditional off-road treads to trendy, aggressive patterns. A ’75 Jimmy, fitted with outsized mud-terrain tires after the raise, tasks a picture of rugged functionality, its look reflecting its potential to overcome difficult terrain. The wheel and tire mixture turns into a focus, defining the truck’s character and reflecting the proprietor’s particular person tastes.
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Visible Aggression
The 2-inch raise inherently imbues the truck with a extra aggressive visible attraction. The elevated floor clearance suggests off-road prowess, whereas the taller stance elevates the truck above the mundane. A ’86 Silverado, as soon as perceived as a easy work truck, features a newfound sense of authority with the addition of the raise, its presence amplified by the delicate enhance in top. The aesthetic enhancement transcends mere beauty adjustments; it transforms the truck’s perceived capabilities and tasks a picture of rugged dependability.
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Restoration Enhancement
For these engaged in restoring these traditional vehicles, a two-inch raise can function a delicate but impactful enhancement. It permits for the incorporation of barely bigger tires with out compromising the automobile’s authentic character, providing a nuanced improve that respects the truck’s heritage. A ’73 C20, meticulously restored to its former glory, advantages from the raise’s means to accommodate barely wider tires, enhancing its stance with out detracting from its classic allure. The aesthetic enhancement turns into a considerate addition, honoring the truck’s historical past whereas subtly enhancing its visible attraction.
Finally, the aesthetic enhancement provided by a two-inch raise on a ’73-’87 Chevy or GMC truck is a testomony to the enduring attraction of those traditional automobiles. It represents a delicate but efficient technique of personalizing and enhancing their look, remodeling them from utilitarian machines into objects of delight and symbols of particular person expression. The raise, on this context, turns into greater than only a mechanical modification; it evolves right into a device for inventive expression, permitting homeowners to have a good time the timeless design and rugged spirit of those iconic vehicles.
Often Requested Questions
The modification of a traditional Chevrolet or GMC truck raises quite a few questions, notably in regards to the set up and impression of a two-inch raise package. What follows makes an attempt to handle a few of the extra prevalent considerations and misconceptions surrounding this specific improve.
Query 1: Will a two-inch raise package actually clear bigger tires, or are additional modifications typically obligatory?
Expertise dictates that whereas a two-inch raise presents elevated clearance, it’s not a common panacea. Tire measurement variations and wheel offset play vital roles. One would possibly recall the story of a ’79 K10 proprietor who, after putting in a raise, found that his chosen 33-inch tires nonetheless rubbed throughout full turns. Cautious measurement and consideration of those components are essential.
Query 2: Is knowledgeable alignment actually obligatory after putting in a raise package? Can the job be dealt with at dwelling?
The implications of neglecting correct alignment following a raise are vital. Contemplate the ’83 C20 affected by untimely tire put on and unstable dealing with after its proprietor tried a DIY alignment. A certified alignment specialist possesses the instruments and experience to make sure exact changes, safeguarding dealing with and element longevity.
Query 3: How considerably will a two-inch raise impression the unique journey high quality of the truck?
Altering the suspension inevitably impacts journey high quality. The extent of this impression is dependent upon the package’s high quality and the cautious collection of accompanying shocks. One recounts the story of a ’75 Blazer remodeled from snug cruiser to jarring journey after a poorly chosen raise package. Matching shocks to the altered spring price is paramount.
Query 4: Are there any unexpected mechanical points that generally come up after putting in a raise package on a truck of this age?
Vehicles of this period typically current distinctive challenges attributable to age and corrosion. Seized bolts, weakened springs, and deteriorated bushings are commonplace. A mechanic recollects a ’77 Suburban challenge that unexpectedly escalated right into a weeks-long ordeal attributable to rusted {hardware}. Thorough preparation and persistence are important.
Query 5: Will a two-inch raise noticeably have an effect on gas economic system?
Adjustments to journey top and tire measurement invariably impression gas consumption. A bigger tire presents extra rolling resistance, and the elevated top contributes to pull. A ’81 GMC proprietor famous a lower of roughly 1-2 MPG after putting in a raise and bigger tires. Expectations concerning gas effectivity needs to be tempered.
Query 6: Is it attainable to put in a two-inch raise package with out compromising the truck’s authentic look and character?
The important thing lies in subtlety. A well-chosen raise package, paired with appropriately sized tires, can improve the truck’s stance with out detracting from its traditional strains. A restorer recollects a ’74 Cheyenne subtly improved with a raise and wider tires, preserving its classic allure whereas enhancing its presence.
In abstract, the set up of a two-inch raise package on a ’73-’87 Chevy or GMC truck calls for cautious consideration of quite a few components past mere aesthetics. Correct planning, element choice, {and professional} execution are essential for a profitable and satisfying end result.
The following part will delve into case research illustrating profitable and unsuccessful raise package installations on these traditional automobiles.
Professional Steering on 73-87 Chevy 2 Inch Raise Package Functions
The pursuit of an enhanced stance for the traditional Chevrolet and GMC vehicles of the 1973-1987 period typically begins with the consideration of a two-inch raise package. Earlier than embarking on this modification, observe these pointers, born from expertise and the teachings realized from those that have traversed this path earlier than.
Tip 1: Assess the Basis First.
Earlier than ordering any package, meticulously examine the prevailing suspension elements. Cracked bushings, worn ball joints, and sagging springs will solely amplify the challenges launched by the raise. There was a ’78 K10 proprietor who regretted not changing his worn-out leaf springs earlier than putting in his raise package, which might of prolonged the lifetime of his raise package. Addressing these points beforehand ensures a secure base for the modification.
Tip 2: Wheel Offset is as Necessary as Tire Measurement.
A typical pitfall is focusing solely on tire diameter. Wheel offset, the gap from the hub mounting floor to the wheel’s centerline, dictates how the tire sits throughout the wheel nicely. Incorrect offset can result in rubbing, even with a raise. A cautionary story includes a ’85 C20 whose aggressively offset wheels necessitated fender flares after the raise, a price he had not anticipated.
Tip 3: Funds for Extra Than Simply the Package.
The marketed worth of the package is never the ultimate price. Count on to consider alignment, probably new shocks, and maybe even driveline modifications to mitigate vibrations. One recounts the story of a ’82 Blazer proprietor whose seemingly inexpensive raise rapidly doubled in worth attributable to unexpected bills. Think about alignment, shocks, and driveline modifications.
Tip 4: Corrosion is the Silent Enemy.
Vehicles of this classic are sometimes affected by rust. Put together for seized bolts and corroded {hardware}. A penetrating oil and persistence are important. The ’76 K5 mechanic who was practically defeated by seized shock bolts after a easy raise package that almost ruined the automobile. He wished he spent extra time with penetrating oil and a torch.
Tip 5: Torque Issues.
Improperly torqued bolts are a recipe for catastrophe. Put money into a high quality torque wrench and cling to the producer’s specs. A unfastened U-bolt can result in catastrophic penalties, as a ’80 C10 proprietor found when his axle shifted mid-corner.
Tip 6: Search Counsel.
Don’t hesitate to seek the advice of with skilled mechanics or fellow fans. Their insights can show invaluable in navigating the complexities of the set up. A novice ’84 Suburban proprietor averted quite a few pitfalls by heeding the recommendation of a seasoned truck restorer.
Tip 7: Prioritize Journey High quality When You Can.
Whereas the attraction of a raise is plain, keep in mind the impression on journey high quality. Not all kits are created equal. Analysis people who prioritize consolation in addition to elevated top. A person with a ’77 Chevy Truck who wished off-roading however couldn’t sacrifice consolation.
These insights, gleaned from the collective expertise of those that have modified these traditional vehicles, function a information to navigate the trail of a 73-87 Chevy 2 Inch Raise Package with diligence and foresight. Success lies not merely in elevating the automobile, however in doing so with an understanding of the potential challenges and a dedication to addressing them proactively.
The ultimate part will summarize the important thing factors mentioned and provide closing ideas on the enduring attraction of those traditional vehicles and the pursuit of their enhancement.
73-87 Chevy 2 Inch Raise Package
The previous sections have dissected the multifaceted nature of putting in a 73-87 chevy 2 inch raise package. From the attract of enhanced aesthetics to the sensible issues of element compatibility and set up complexity, this modification presents each alternatives and challenges. Tire clearance, journey high quality, and alignment precision emerge as important components demanding cautious consideration and knowledgeable decision-making.
Ultimately, the choice to raise a traditional Chevrolet or GMC truck rests on a dedication to preserving its legacy. Every modification, every fastidiously chosen element, contributes to a bigger narrative, a narrative of restoration, customization, and enduring appreciation. The 73-87 chevy 2 inch raise package shouldn’t be merely a method to an finish; it represents a chapter within the ongoing saga of those iconic automobiles, a testomony to their timeless attraction and the unwavering dedication of those that search to boost their efficiency and protect their historical past. Might this exploration function a information, illuminating the trail towards a well-considered and in the end rewarding modification.
