1972 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. It'll also make proof-reading and catching screwups and obvious conflicts easier.

Front Suspension: Z-28 anti-roll bar 1.0-inch diameter instead of standard 0.6875-inch unit. (Unchanged since 1970)
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: Revised rear stabilizer bar and rear shock valving.
Rear Springs
Part #   Code   Deflection Rate lbs/in   Load @ .71 Spring Camber (LBS)
481992   PK   96   735

Steering: Power steering had straight 16:1 ratio and was revalved to give more road feel.

Steering - Gear, valving & related components
Year   Part Number   Description
1971-72   3996780   (Camaro w/PS, Gear unit, power basic, variable ratio)
1971-72   7808369   Camaro - valve
1972   7815770   (Camaro - exc p/s, spec. h/per. 350)

Sway bars
Year  Part Number  Description
1971-72 3984557  (all) 1.00"
1970-75 3983085  (Camaro w/sp. perf susp, Z28) rear 0.688" diam

1972 Camaro Spring Charts

Chart "A", Front/Rear Base Sprung Weight

Model Front Rear
12387 Camaro (6 cyl) 765.0548.0
12487 Camaro (8 cyl) 817.0558.0

Chart "B"

RPO Option Weights Front Rear
A51 Bucket Seats 5.54.5
C60 Air Conditioning 50.58.0
D55 Floor Console 7.02.0
D80 Spoiler 010.5
LS3 (402) 102.514.0
L48 (350 2bbl) 9.514.0
L65 (350 2bbl) 5.00
M38 TH3507.5 4.5
M40 TH40013.0 7.0
N40 Power Steering14.5 0
T60 H.D. Battery7.0 0
Z22 RS Package11.0 0
Z28 Sp h/per 35021.5 21.5
Z87 Dlx Interior4.5 7.5

Chart "C", Front Springs Group 7.412

Models Tires Sprung Weight Part #
All E78-14 or E60-15 0-810 3996362
       

Chart "C", Rear Springs Group 7.503

Models Tires Sprung Weight Part #
All E78-14 or E60-15 0-810 3996362
       

Spring Details
3996365
480881

Summary/Conclusions/Observations


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

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