Welcome to MCB Parts

My Cart:

0 item(s)
You have no items in your shopping cart.

0

Welcome to our online store!

UMI Performance Suspension 78-88 G Body El Camino Monte Stage 3.5 Red 2" Drop

$3,989.99
SKU: GBF035-2-R

Availability: In stock

Handling Time: 30 Days

Details

To make sure you receive your package, all items $500 and over are sent signature required

1978-1988 GM G-Body Handling Package- Stage 3 - Small Block

Made in the USA!

  • Applications:
  • 1978 - 1988 Chevrolet Monte Carlo, Malibu, El Camino
  • 1978 - 1988 Buick Regal, Grand National
  • 1978 - 1988 Pontiac Grand Prix, LeMans
  • 1978 - 1988 Oldsmobile Cutlass

UMI's Stage 3.5 kit is designed to transform your GM G-Body from a grandma cruiser to a capable corner carver with the twist of the wrist. UMI's lowering springs form the handling foundation and are controlled by UMI's premium rebound adjustable shocks. UMI's ultra-premium springs feature carefully tuned rates and high quality construction to eliminate the floating feeling and will tie your G-body directly to the road. The UMI monotube shocks rebound adjustmentallows you to fine tune your ride whether you're doing back road heroics or shaving that last tenth of a second between the cones. UMI a-arms feature tubular construction, Delrin bushings for precise steering and caster corrected uppers. The ½" taller upper ball joints work with the lowering springs to tune up the poor factory camber curve. Out back the UMI trailing arms feature Roto-joints for smooth articulation combined with poly bushings for a smooth ride. Adjustable uppers allow for pinion angle tuning while the axle mounted pro-tour bar performs on the street, during cornering and even the occasional dragstrip blast. The entire package is designed and manufactured by UMI in Philipsburg, PA USA of US materials.

Note: Chassis mounted rear sway bar included fits factory rear end axle tubes measuring 2.750". If your vehicle is using an aftermarket rear end with larger axle tubes please contact us for 3.000" or 3.250" u-bolts.

  • Key Features:
  • Increased spindle height by 1/2" via tall upper ball joints for improved camber gain and a better contact patch. Works nicely in conjunction with lowering springs.

  • Upper a-arms add caster for improved steering feel and straight line stability.

  • Lower a-arms feature UMI-built Delrin bushings and accept standard springs or coilovers.

  • 1.250" front sway bar for flat cornering, CNC bent from 4140.

  • UMI shocks feature monotube construction and rebound damping adjustment. Rebound adjustment tuning improves handling and responsiveness.
  • Powering springs feature ultra premium CrSi material with linear rates front and rear for consistent handling. (530 lb/in front, 130 lb/in rear).

  • Rear trailing arms feature Poly and Roto-Joints as well as adjustable uppers for setting pinion angle and rear lateral location.

  • Roto-Joints allow smooth articulation for improved handling and less bind.

  • 1" diameter rear Pro-Tour sway bar offers tune-able rear roll resistance and less binding for street, corner carving or light drag and is balanced well with our 1.250" front bar and spring rates.

  • Stage 3 Kit Includes:
  • 3032 - Tubular lower front a-arms with Delrin bushings.
  • 3033-2 - Tubular upper front a-arms with Delrin bushings & ½" taller ball joints.
  • 3035 - Heavy duty 1-1/4" front sway bar with new bushings & endlinks.
  • 3044-275 - Tubular & adjustable 1" pro-touring rear sway bar.
  • 3051- 2" lowering springs, linear spring rates (530 lb/in front, 130 lb/in rear).
  • 3038- Tubular rear lower control arms with Roto-Joint.
  • 3037- Adjustable rear upper control arms with Roto-Joints.
  • 3028- Tubular frame braces with hardware.
  • 3000- Replacement rear end housing bushings.
  • 3013- Front upper & lower Grade 8 hardware kit.
  • 3001- Rear control arm Grade 8 hardware kit.
  • Part # S41131 - (4) UMI rebound adjustable monotube shocks.


Lower Front Arms

UMI lower A-Arms are fabricated from DOM tubing with CNC machined tube ends for a precision fit. They are jig built to maintain accuracy and bolt on correctly every time. All critical areas are TIG welded for superior strength and a clean look. UMI's lower A-Arms also feature improved ball joint angle for lowered vehicles and the design provides additional tire clearance. Lower a-arms include greaseable, UMI designed and manufactured Delrin bushings. Delrin bushings offer supremely smooth suspension action and precision operation while still providing some insulation from road noise. They come preloaded with polyurethane bump stops, steering stops and premium ball joints. UMI's extensive testing on the street, drag strip and skid pad ensures a quality product able to with stand all types of abuse. UMI lower A-Arms are designed to work with factory springs, lowering springs and coil over kits without changing the a-arms. UMI Performance lower a-arms are shipped fully assembled and ready for installation.

  • Features:
  • Tubing is precision bent on a programmable tube bender & CNC machined for accuracy
  • Tig built & TIG welded for superior strength & a clean look
  • Greaseable, UMI designed & manufactured Delrin bushings for supremely smooth suspension action
  • Premium ball joints installed & polyurethane bump stops
  • Simply bolt-on and go. Fits factory spindle and works with factory springs, lowering springs and coil over kits
  • Durable red or black powder coat finish
  • Designed and manufactured with pride in Philipsburg, PA USA


Upper Front Arms

Improve the street and track performance of your G-body and achieve that precise Pro-Touring feel by combining UMI's popular upper a-arms with ½" taller premium ball joints. These a-arms combine the benefit of additional caster with increased negative camber potential throughout the suspension travel. The relocated ball joint plate offers up to six degrees caster without excessive shimming while the ½" taller ball joint creates up to one additional degree negative camber at full bump travel. Expect improved steering feel courtesy of increased caster and an overall increase in lateral grip due to the camber improvement. Features include greaseable, low deflection UMI designed and manufactured Delrin bushings, chromoly cross shafts, improved header clearance and polyurethane bump stops. These track-tested, jig built DOM a-arms are supplied with a durable gloss red or black powder coat finish which guarantees your performance parts stay beautiful on your street car, drag car, autocrosser or Pro-touring machine. Designed and manufactured with pride in Philipsburg, PA - USA.

  • Features:
  • NEW premium ½" taller ball joints for improved camber curve
  • Relocated ball joint pad for increased caster without excess shims
  • CNC Machined ball joint mount & tubing radiuses
  • Robust tubular design with machined gussets
  • Precision bent tubing on programmable tube bender
  • Tig welded for superior strength and clean looks
  • 4140 chromoly cross shafts, CNC machined & zinc plated
  • UMI built, greaseable & fluted CNC machined no deflection Delrin bushings
  • Polyurethane bump stops included
  • irect bolt-in compatible with factory or UMI lower a-arm and factory spindle
  • ay also work in conjunction with other brand lower A-arms and/or spindles
  • Package includes recommended alignment specs and detailed installation instructions


Front Sway Bar

UMI Performance 1.250" (32mm) solid front sway bar is designed to reduce body roll, understeer and increase corning capabilities resulting in a more balanced suspension. This front sway bar is more rigid than the factory 7/8" front sway bar and bolts directly in place with no modifications. This Front sway bar is manufactured from 1.250" 4140 chrome moly steel, CNC bent and formed as one piece to insure maximum strength and performance. Each kit includes new Energy Suspension end links and greaseable sway bar bushings with new zinc plated clamshells. Sway bar is available powder coated bright red or gloss black for a durable long lasting finish.


Rear Sway Bar

This beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase corning capabilities resulting in a more balanced suspension. This rear sway bar also works excellent to keep your vehicle level and straight during those hard launches. This sway bar is manufactured from 1" solid 4140 chrome moly steel, heat treated and formed as one piece to insure maximum strength and performance. This sway bar is heat treated and formed as one piece, this processallows the bar to maintain its shape and memory longer than a cold bent bar.

Rear sway bar includes all new Grade 8 hardware to complete the installation and is available powder coated Bright Red or Gloss Black.


Lower Rear Arms

UMI's tubular lower control arms utilize their Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The Roto-Joint design is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Jointallows rear end free movement when high handling, auto cross or road race is a concern while still being a 100%25 streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle. This control arm set features polyurethane bushings on one end and UMI's swivel Roto-Joint on the other end. This set-up is designed for street performance and street enthusiast. The polyurethane bushing end is designed to be bolted to the vehicle chassis side while the Roto-Joint attaches to the rear end side. Since the polyurethane bushings are softer they are designed to absorb more road noise and shock before it enters the passenger compartment of the vehicle. Both control arms feature the correct provisions for adding a stock or aftermarket sway bar. Sway bar holes are reinforced with a 0.120" wall thickness steel sleeve that is TIG welded and sanded into place. All bushing ends and Roto-Joints are greaseable and low maintenance making an excellent street setup for your cruiser!

  • Features:
  • onstructed of 1.500" x 0.120" DOM mild steel tubing
  • wivel Roto-Joints installed
  • nergy Suspension greaseable polyurethane bushings
  • ully TIG welded
  • einforced sway bar holes
  • hipped fully assembled and ready to install
  • ses OEM hardware
  • rilliant and durable powder coat finish


Control Arm Reinforcements/Frame Braces

Trailing arm mount braces are designed to reinforce the rear upper and lower front control arm mounts on your 78-88 G-Body vehicle. The more power your ride makes the better chance of bending or breaking the rear control arm mounts. These tubular reinforcements tie the upper and lower rear control arm mounts together for added strength and driving performance. The UMI Performance braces are bent to contour the floor of the vehicle, unlike some competitor"s designs these reinforcements do not require the floor to be dented or pounded for correct fitment. Control arm braces are manufactured from DOM steel; TIG welded and feature adjustment for a perfect fit on all 78-88 G-Body"s. This kit includes new longer Grade 8 bolts, lock nuts and washers for a 100%25 bolt in installation.


Upper Rear Arms

Eliminate wheel hop, increase traction and improve handling performance with an easy bolt on installation. UMI Performance"s adjustable upper controls feature on car adjustability and are supplied with spherical Roto-Joints. The Roto-Joint design is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Jointallows rear end free movement when high handling, auto cross or road race is a concern while still being a 100%25 streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle.

For ease of adjustment UMI has designed these upper control arms with on car adjustability. Pinion angle adjustments can easily be made in the garage or at the track and making adjustments is as simple as loosening two jam nuts. Using UMI's chrome moly on car adjuster, simply turn the adjuster with the control arms attached to the vehicle to quickly lengthen or shorten the control arm. As the control arms are shortened or lengthen the rotate the rear end changing the pinion angle. Pinion angle adjustments are crucial when wanting to lower your track 60 foot times, increase traction and reduce unwanted wheel hop.

  • Features:
  • n car adjustable using a chrome moly, heat treated adjuster
  • ounting plate CNC machined from 0.250" thick mild steel
  • 140 chrome moly threaded tube adaptors
  • pherical Roto-Joints installed
  • hipped fully assembled and ready to install
  • ses OEM hardware
  • rilliant and durable powder coat finish


Polyurethane Rear End Housing Replacement Bushings

Replace your rubber OEM rear end housing with an Energy Suspension polyurethane setup. Over years, rubber OEM bushings dry rot, crack and harden, decreasing your ride quality and performance. The Energy Suspension polyurethane bushings replace the two upper control arm rear end differential bushings--the bushings that stay attached to the rear end. This is an excellent upgrade for your street or track driven vehicle. (2 per set)


More about Roto-Joint Technology

UMI's Roto-Joint, short for Rotational Joint,allows 28 degrees of total rotation and unrestricted movement throughout the vehicles suspension. The Roto-Joint is designed to work like a spherical rod end while maintaining streetable qualities of a softer bushing. The Roto-Joint is designed to articulate and prevent suspension bind, and since the installed delrin race does not deflect like softer bushings, there is an improvement in traction and a significant reduction in wheel hop. The construction of the Roto-Joint features a 4140 chrome moly, hard chrome plated spherical ball which rotates in a delrin race. The 4140 chrome moly material and hard chrome plating are designed for extensive wear resistance against hard driving and accumulated miles. The spherical ball rotates in the CNC machined delrin bushing, which is contoured for the spherical ball to allow unrestricted movement as the ball rotates. Delrin is the bushing material of choice due to its high resistance against wear, great tensile strength, and ability to maintain its physical properties. The housing of the Roto-Joint features 4140 chrome moly threads, and a CNC machined bushing holder TIG welded together for the utmost in strength and durability. The UMI Roto-Joint is adjustable and 100%25 rebuildable. This means as the delrin race wears the adjuster ring can be tightened using the optional spanner wrench to apply tension to the ball. If the delrin race would ever wear completely it can be replaced easily.

Spanner Wrench
This spanner wrench is used for adjusting and disassembling Roto-Joints used in all UMI Performance products. Over time if the delrin race inside the Roto-Joint would wear the spanner wrench is used to tighten the adjusting ring applying more pressure to the delrin inside. The spanner wrench is also used to disassemble the Roto-Joint for cleaning, inspection and rebuilding.

  • Features:
  • 00%25 Rebuildable Design
  • educes Suspension Bind
  • elrin race absorbs shock
  • Greaseable unit increases bushing life
  • Tig welded construction
  • hrome moly spherical ball
  • 8 Degrees of total unrestriced movement
  • uilt exclusively by UMI Performance
  • ade in the USA!


Warranty: UMI Performance offers a 2 Year replacement Warranty from the original purchase date to the original purchaser of the parts.

Fitment Details

Year Make Model Trim Engine Notes
1978 Buick Regal
1979 Buick Regal
1980 Buick Regal
1981 Buick Regal
1982 Buick Regal
1983 Buick Regal
1984 Buick Regal
1985 Buick Regal
1986 Buick Regal
1987 Buick Regal
1988 Buick Regal
1978 Chevrolet El Camino
1979 Chevrolet El Camino
1980 Chevrolet El Camino
1981 Chevrolet El Camino
1982 Chevrolet El Camino
1983 Chevrolet El Camino
1984 Chevrolet El Camino
1985 Chevrolet El Camino
1986 Chevrolet El Camino
1987 Chevrolet El Camino
1978 Chevrolet Malibu
1979 Chevrolet Malibu
1980 Chevrolet Malibu
1981 Chevrolet Malibu
1982 Chevrolet Malibu
1983 Chevrolet Malibu
1978 Chevrolet Monte Carlo
1979 Chevrolet Monte Carlo
1980 Chevrolet Monte Carlo
1981 Chevrolet Monte Carlo
1983 Chevrolet Monte Carlo
1984 Chevrolet Monte Carlo
1985 Chevrolet Monte Carlo
1986 Chevrolet Monte Carlo
1987 Chevrolet Monte Carlo
1988 Chevrolet Monte Carlo
1978 Oldsmobile Cutlass Supreme
1979 Oldsmobile Cutlass Supreme
1980 Oldsmobile Cutlass Supreme
1981 Oldsmobile Cutlass Supreme
1982 Oldsmobile Cutlass Supreme
1983 Oldsmobile Cutlass Supreme
1984 Oldsmobile Cutlass Supreme
1985 Oldsmobile Cutlass Supreme
1986 Oldsmobile Cutlass Supreme
1987 Oldsmobile Cutlass Supreme
1978 Pontiac Grand Prix
1979 Pontiac Grand Prix
1980 Pontiac Grand Prix
1981 Pontiac Grand Prix
1982 Pontiac Grand Prix
1983 Pontiac Grand Prix
1984 Pontiac Grand Prix
1985 Pontiac Grand Prix
1986 Pontiac Grand Prix
1987 Pontiac Grand Prix
1988 Pontiac Grand Prix