Control Arms Pontiac Grand Prix 1978-1987 Rear, Upper and Lower

For the 1978-1987 Pontiac Grand Prix. Spohn Upper and Lower, Rear Control Arm kits are the ultimate upgrade for the rear suspension on classic 1978-1988 GM G-Body cars. Designed by Spohn Performance, these Upper and Lower Trailing Arm sets are one of the best rear control arm packages available in the market today. Spohn rear control arms outperform factory stamped arms with improved durability, adjustability, geometry and design. When installed you can expect superior handling, traction and stability for your suspension. Made in the U.S.A.
Engineered with precision, Spohn upper, rear trailing arms feature a turnbuckle design that allows for full adjustability without removing the arms from the vehicle. Bolt-on design for an OEM like fitment and easy installation. These are the highest quality, easiest to adjust on the car, rear upper control arms on the market!
Included, Spohn rear, upper arms are equipped with greasable, Del-Sphere rod ends. These Delrin bushed spherical rod ends absorb shock and road noise so you get the quiet and smooth ride of a bushing as well as 22 of rotation! Designed and manufactured exclusively by Spohn Performance for unmatched ride quality. Adjustable, rear upper arms are machined using TIG welded 4130N chrome moly threaded tube adapters and 1.25 in. x 0.095 in. wall DOM tubing for added strength and performance.
Spohn Del-Sphere pivot joints feature a one piece forged and heat treated 4130 chrome moly housing, a heat treated and chrome plated chrome moly spherical ball, Delrin bushing cups, heat treated retainer washers and snap ring, external grease fittings, and a zinc coated housing for show stopping finish built to stand up to the elements.
The adjustment range on Spohn upper, rear control arms is: 10.000 inches (closed) and 11.625 inches (open), (*OEM or stock setting for reference is 11.125 inches, open) providing ample flexibility to customize your suspension setup. Factory hardware is retained to attach the arms to the axle and the frame, ensuring easy installation. The adjuster forks feature 1 in.-14 RH threads for precise tuning.
Included Spohn lower, rear control arms are Del-Sphere pivot jointed 4130N chrome moly, tubular and fully adjustable for maximum traction and handling. Lower control arms are: 18.125 inches (closed) and 20.625 inches (open), (*OEM or stock setting for reference is 19.250 inches, open). The adjustability feature allows for the centering of the rear end housing fore and aft to gain proper tire clearance when running larger tires and for proper alignment after lowering your ride height.
*NOTE: These rear lower control arms do not have factory style rear sway bar mounting holes.
*NOTE: Use Aldan American rear sway bar part number A0137 or A0154 with this rear control arm kit
Included Spohn Del-Sphere rear axle housing, spherical pivot joint bushings that allow for full articulation of your rear upper control arms for maximum traction and handling performance. These Del-Sphere pivot joints install easily with a light press fit and are retained by an external snap retaining ring. CNC machined 6061-T6 aluminum housing with a hard clear anodized finish houses Delrin bushing cups designed for a smooth and self-lubricating operation. Easy tension adjustments using the included adjustment wrench. Spohn Del-Sphere bushings are 100% rebuildable.
If youre looking for better handling, traction and proper wheel centering on your rear end then this rear control arm package from Spohn Performance is exactly what your GM G-Body needs. Setup your 1978-1988 GM G-Body rear suspension with fully adjustable, rear, upper and lower control arms.
Kit fits 1978-1988 GM G-Body sedans, station wagons, and El Caminos
Control Arm Location: Rear, Upper and Lower
Includes 2 , Adjustable, Upper Control Arms
Includes 2 , Rear, Lower Control Arms
Includes 2 Del-Sphere bushings for both sides of the differential housing
Bolt-on design for factory like fitment and easy installation
Upper: Fully adjustable design with RH/LH thread turnbuckle for easy fine-tuning
Upper Adjustment range: Closed 10.000 in., Open 11.625 in.
Upper: Adjuster forks feature 1 in.-14 RH threads for precise tuning
Upper: Del-Sphere adjuster ends feature 1 in.-14 LH threads for precise tuning
Upper: 1.25 in. x 0.095 in. wall DOM tubing
Upper: TIG welded 4130N chrome moly threaded tube adapters
Lower: Adjustment range: Closed 18.125 in., Open 20.625 in.
Lower: Includes Del-Sphere rod ends with Delrin bushings for maximum articulation
NOTE: These rear lower control arms do not have factory style rear sway bar mounting holes
NOTE: Use Aldan American rear sway bar part number A0137 or A0154
Del-Sphere bushings provide 22 of travel for enhanced suspension articulation
Factory hardware is retained to attach arms to the axle and the frame
Greasable via zerk fittings for improved longevity
Made in the U.S.A.