1977 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: Spring rates revised: 365 lb./in. instead of 300 previously. Stabilizer now 1.2 inch instead of 1.0.
Rear Suspension: Springs 127 lb./in. for 1977 instead of 89-99 lb./in. for 1974. Rear stabilizer 0.55 instead of previous 0.69 inch. Higher durometer shackle rubber bushings with revised rear shackles. Revalved shocks.
Steering: Power assist standard, ratio now straight 13.02:1 overall instead of 1974's 14.3:1.

Steering - Gear, valving & related components
Year   Part Number   Description
1977   7833307   (exc Z28, HD) (F41) Gear, hyd strg (800 gear)
1977   7826116   Valve (exc HD suspension) Note 3
1977   7826113   Valve (HD susp & PS)
1977-79   7833307   (exc z28) Gear, hyd strg (800 gear)

Sway bars
Year  Part Number  Description
1976-77 356530  (Camaro Front 25.400mm)
1976-81 481471  (Camaro w/HD susp, exc Z28) rear 0.562"
1977-81 356534  (Camaro w/Z28) front 31.75mm

1977 Camaro Spring Charts

Chart "A", Front/Rear Base Sprung Weight

ModelFront Rear
FQ87 Camaro Hdtp. Cpe818.0 627.0
FS87 Camaro Hdtp. Cpe820.0 639.5

1977 Chart "B"

RPO Option Weights Front Rear
A31 Power Windows2.5 2.5
BS1 Body Insulation Pkg (FQ) 1.01.5
C60 A/C (6 cyl)34.0 4.0
C60 A/C (8 cyl)40.0 5.0
D55 Frt Floor Console 1.5 1.0
J50 Power Brakes 4.0 0.5
LM1 350 4bbl 51.0 3.0
LG3 305 2bbl 50.0 3.5
M38 TH350 7.5 4.0
M40 TH400 14.5 8.0
UA1 H.D. Battery 5.0 -0.5
U58 Sterio Radio 5.5 2.0

 

Front Springs - Group 7.412

Rear Springs - Group 7.503

Models Tires Sprung Weight Part #
All E78-14 0-850 3996364
EXCEPT   851-880 3996365
Z28   881-940 344537
    941-1000 3998629
    1000-over 3998629
    
  E78-14 0-810 3996361
    811-870 3996364
    871-900 3996365
    901-960 344537
    961-over 3998629
       
Z28 GR70-15 0-840 334488
    841-915 3988111
    916-over 3988113
Models Tires Sprung Weight Part #
All FR78-14 0-635 480880
EXCEPT   636-700 480881
Z28   701-over 493689
    
 E78-140-665480880
    666-over 480881
       
Z28 GR70-15 ALL 481132

Spring Details
334488
3988111
3988113
481132

Summary/Conclusions/Observations


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

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