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.

Front Suspension: Z-28 anti-roll bar 1.0-inch diameter instead of standard 0.6875-inch unit.
Front Springs
Part #   Code   Deflection Rate   Curb Sprung Wheel load/wheel (LBS)   Load @ 11.00" Checking Height
3982345   EJ   300   0 - 847   1920
3982346   EN   300   848 - 877   1980
3982347   EO   300   Over 877   2040

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

1970 Camaro Spring Charts

Model Front Rear
Camaro (6 cyl) (exc P/S, A.T) 3996362480878
Camaro (307) (exc CAC) 3996362480878
Camaro (307) (w/ CAC) 3996365480878
Camaro (350) (exc CAC) 3996362480878
Camaro (350) (w/ CAC) 3996365494776
Camaro (396) (exc CAC) 3996362480878
Camaro (396) (w/ CAC) 3988104494776
Camaro (w/sp.hp 350) (exc CAC) 3996362480881
Camaro (w/sp.hp 350 w/CAC) 3996364480881

Summary/Conclusions/Observations

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

NOTE: Check 71 parts book and verify.


Last updated: 8/12/1998
Author: MadMike Maciolek

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