MacPherson strut cartridge replacement on GM-10 series (“W”-car) vehicles. This includes 1988 and later Pontiac Grand Prix, Oldsmobile Cutlass and Buick Regal, 1989 and later Chevrolet Lumina.
PROBLEM: A MacPherson strut spring compressor is not required to replace the MacPherson struts on these vehicles. The strut cartridge is removed and replaced through the body shock tower. Special tools are required.
Do not service the strut unless the vehicle is on the floor. All 4 tires must be on the floor and facing straight ahead, otherwise the coil spring can fly free.
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Engine L/GL/GLS GL V6/Limited Type 4-cylinder 16-valve Inline CVVT DOHC 24-valve DOHC V6 Displacement 2.0L (1,975 cc) 2.7L (2,656 cc) Bore & Stroke (mm) 82.0 x 93.5 86.7 x 75.0 Compression Ratio 10.1:1 10.0:1 Horsepower @ RPM 140 @ 6,000 173 @ 6,000 Torque (lb-ft) @ RPM 136 @ 4,500 178 @ 4,000 Transmission 5-Speed Manual 4-Speed Automatic with SHIFTRONIC™ Brakes Front Power-assisted Ventilated Discs Rear Power-assisted Solid Discs Anti-lock Braking System (ABS) with Electronic Brake Force Distribution (EBD) and Brake Assist (BA) (more…)

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Maximum Towing Capacity (kg) With Trailer Brake: 907 Without Trailer Brake: 748 Transmission 5-Speed Manual S 4-speed Auto O 5-Speed Auto – SHIFTRONIC™ O Curb Weight Manual transmission FWD 1,691 Auto transmission FWD 1,724 Auto transmission AWD – Drive Configuration Front-wheel Drive S AWD – Brakes Front: Ventilated Disc, Twin Piston Rear: Solid Disc ABS with Electronic Brake Force Distribution (EBD) and Brake Assist (BA) Electrical System Battery 68 AH Alternator 13.5 V/130 AMP Ignition Electronic Distributorless Frame Construction Unitized Body (more…)

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FRONT INSTALLTION INSTRUCTIONS
1. Block the rear wheels of the vehicle. Raise the front of the vehicle and support the vehicle with jack stands under the frame rails. Remove the front wheels and tires and set aside. Position a hydraulic jack under the front axle and raise the jack until the front suspension begins to compress.
2. On both sides of the vehicle, scribe alignment marks on the adjustment cam and axle bracket at the lower link to axle attachment point for later reference. See Photo 1
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FRONT PROCEDURE
NOTE: Save all factory components and hardware for reuse, unless noted.
1) PREPARE VEHICLE… Raise front of vehicle with a jack and secure a jack stand beneath each frame rail, behind the lower link arms. Ease the frame down onto the stands, place transmission in low gear or “park”, and chock rear tires. Position the jack so that it supports, but does not raise, the front axle. Remove front tires.
2) STABILIZER BAR LINKS… Disconnect the stabilizer bar links from both the bar body and frame.
3) SHOCK ABSORBERS… Remove the lower shock bolt, followed by the bolts attaching the shock tower-to-coil tower. Remove the shocks.
4) TRACK BAR… Disconnect the track bar from its upper (frame) mounting point, and rest it on the axle. It may be helpful to loosen the lower track bar bolt to relax the lower bushing.
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Trail Master recommends this system be installed by a certified technician! These instructions address installation of the Trail Master system and may not include OE recommended procedures for disassembly / reassembly of OE components. Research the areas requiring certification. In addition to these instructions, professional knowledge of disassembly / reassembly procedures as well as post installation checks are required. Attempts to install this system without knowledge and expertise may jeopardize the integrity and or operating safety of the vehicle.
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