GM Stock Suspension Parts

[Blue89rs]

Does anyone have a printout or spread sheet that gives the various springs and anti-sway bar numbers? Better yet, which ones to get/find? I have the GM numbers for mine but I want to know what they mean. Thanx!

[89vert]

Does anyone have a printout or spread sheet that gives the various springs and anti-sway bar numbers? Better yet, which ones to get/find? I have the GM numbers for mine but I want to know what they mean. Thanx!

I know GTA sway bars are the biggest from the factory

[Drakar]

Found this on TGO

Part_No.____________Description________________Pri ce________Prices are from www.gmpartsdirect.com
GM (14079634) Brace Assembly “Wonderbar” $19.53 (The GM price is $45.77)



Known Factory Wonder Bar / Sway Bar / Spring Combinations
Wonder Sway Bar Springs
Car__________Bar?___Front_________Rear_________Fro nt_________Rear______
85 IROC Yes 32mm solid
86 IROC Yes 34mm front 24mm rear
87 IROC - wonder bar, 36mm hollow ??mm rear 6ZW,7ZW 8NL,9NL,
88 SCV8AT No 30mm solid 18mm solid 6XW,7XW 8UX,9UX


Sway Bar Sizes (listed stiff to soft)
FRONT SWAY BARS
36mm hollow (rare), 34mm solid, 34mm hollow, 32mm solid, 30mm solid, 28mm solid
(Rumor has it that 36mm hollow bars were offered in 89-92 Camaros, and 86-92 Firebirds))
REAR SWAY BARS
25mm solid (rare), 24 mm solid, 23mm solid, 21mm solid, 18mm solid, 12mm solid

Q: Does anyone know the part number for the hollow 36mm swaybar?
A: Here is the part number.
_Part_No.____________Description________________Pr ice________Prices are from www.gmpartsdirect.com
GM (14094344) 36mm Hollow Swaybar (1LE) $65.22 each
GM(14094389) 36mm swaybar high durometer bushing


Q: Does anyone know where I can get new rubber or polyurethane rear spring islators?
A: Here are the part numbers.
_Part_No.____________Description________________Pr ice________Prices are from www.gmpartsdirect.com
GM (14047915) Front Coil Spring Isolator $3.86 each
GM (10290379) Rear Coil Spring Isolator $5.84 each


Spring Rates
The stock 3rd gen front coil spring rates are around 350lbs/in for base cars, and around 548 lbs/in for IROC-Z /WS6 cars, 4th gen WS6 cars are around 360lbs/in.The stock rear coil spring rates are around 204lbs for IROC-Z /WS6 cars
On springs, the last 2 characters are the rate.
(Rumor has it that IROC "BZX" front springs are 3" shorter than stock '82 springs)

Front Springs
“XX" is the lightest, and "ZZ" is the heaviest)
6ZW&7ZW springs are the highest sping rate
The stiffest 4 springs ( ZW, ZX ,ZY ,and ZZ ) are all replaced by a single part # GM(14029399)

Possible front springs for a 87 RS w/F41 Suspension or a 87 Z8 w/ FE2 Suspension
Part No. Tag Part No.
-------------------------------------------
14029399 BZY 14029399 -------------- (+) Highest load rate
14029398 BZX 14029398
14029397 BZW 14029398*
14029396 CDB 14029396
14029395 BXY 14029396*
14029396 BXX 14029396*-------------- (-) Lowest load rate
-------------------------------------------


Rear Springs
("UZ" is the lightest, and "NB" is the heaviest)
The stiffest two springs NNM & NNB are only used on the FE2 & F41 suspensions.

67 RS w/F41 susp
87 Z28 w/FE2 susp
Prod# Code Service #

Possible rear springs for a 87 RS w/F41 Suspension or a 87 Z8 w/ FE2 Suspension
Part No. Tag Part No.
-------------------------------------------
10018083 NNB 10018092*-------------- (+) Highest load rate
10018092 NNM 10018092
10018091 NNL 10018091
10018093 NNN 10018091
10032969 NYB 10018091 -------------- (-) Lowest load rate
-------------------------------------------


WS6 Suspension Parts
The WS6 front springs are code-BZX GM(14029398). The Moog part no for the WS6 front springs is Moog(CS-5665).
The rear springs either come in single rate or variable rate styles.The original GM rear springs came only in a single rate style on WS6 equipped F-bodies. The Moog part no for the (single-rate) rear coil is Moog(CS-5662).