1970 Z28 Suspension & Chassis Component Information

This file is a mess, but I'm trying to consolidate the spring info, the suspension info, and the yearly info into a more readable, manageable and informative package.

Rear Suspension: RPO F-41 special suspension standard, including 5-leaf rear springs, 125 lb./in. spring rate, staggered heavy-duty shocks, link-type rear stabilizer bar.
Rear Springs

Part #		Code		Deflection Rate lbs/in		Load @ .71 Spring Camber (LBS)
481992		PK		96		735

Steering: Standard non-power steering ratio 18.8:1 or 4.1 turns lock to lock. Optional power steering came as variable-ratio at 14.3-10.9:1 for 2.3 turns lock to lock.

Part		GM P/N		Description
Steering Gear
Valve
Pitman Arm		3964877		Manual Steering
Pitman Arm		3964881		Power Steering
Front Swaybar		3984557		1.00" dia.
Rear Swaybar		481471		0.688" dia.
Rear Swaybar		3983085		0.688" dia.

Steering - Gear, valving & related components

Year		Part Number		Description
1970		7809504		(Camaro - exc P/S, Spec. H/Per. 350) Gear unit.
1970		7811734		Camaro- Valve
1970		7808369		Camaro 4bbl - valve

Sway bars

Year		Part Number		Description
1970		3984557		(Camaro, exc spec perf susp) front, 0.938" diameter
1970		3984557		(Camaro, 8 cyl w/spec perf susp) front 1.00" dia

Model	Front	Rear
Camaro (6 cyl) (exc P/S, A.T)	3996362	480878
Camaro (307) (exc CAC)	3996362	480878
Camaro (307) (w/ CAC)	3996365	480878
Camaro (350) (exc CAC)	3996362	480878
Camaro (350) (w/ CAC)	3996365	494776
Camaro (396) (exc CAC)	3996362	480878
Camaro (396) (w/ CAC)	3988104	494776
Camaro (w/sp.hp 350) (exc CAC)	3996362	480881
Camaro (w/sp.hp 350 w/CAC)	3996364	480881

Summary/Conclusions/Observations

Rear Spring 480881 is the chevrolet service replacement part. Spring 481992 is original specification.

NOTE: Check 71 parts book and verify.