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C5 Corvette Suspension Options

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Option Description

GM
Part Number

Production
Line Code
Z51 Power Steering Cooler 26057898
Z51 Front Spring 22178729 AY
Z51 Rear Spring-Coupe/Convertible 22146646 AU
Z51 Rear Spring-Hardtop 22179020 RJF
Z51 Rear Shock Absorbers 10416669 TBC
Z51 Front Shock Absorbers 10279661 TGB
Z51 Rear Sway Bar 10283945 XB
Z51 Rear Sway Bar Bushing 10401553 White Colored Mark
Z51 Front Sway Bar 10234745 White Paint Circle
Z51 Front Sway Bar Bushings 10280526 White Colored Mark
Z51

Factory Production Code is RPO FE3

FE3 ( Z51 ) Changes and Additions For 2000 Model Year

Z51 Rear Sway Bar (Bar size 23.6x3.5) 10424743
Z51 Rear Bushings (2) (Called Insulators) 10424744
Z51 Rear Clamp (2) 10426591
Z51 Rear Sway Bar End Links (4) 10423035
Z51 Rear Spring ( 6 Speed Trans.)  22179020
Z51 Rear Spring ( Automatic Trans.)  22146646
Z51 Rear Shock Absorbers  10416669
Z51 Front Sway Bar (Bar size 28.6x4.5) 10424741
Z51 Front Bushings (2) (Called Insulators) 10424742
Z51 Front Clamp (2) 10254830
Z51 Front Sway Bar End Links (4) 10424745 (See Note)
Z51 Front Shock Absorbers 10279661
Z51 Front Spring 22178729
Note: The Z51 cars have metal end-links in the front and plastic end-links in the rear.
All  non-
Z51 cars have plastic end-links both front and rear.
Option Description

GM
Part Number

Production
Line Code
FE1 Rear Base Springs 22146323 AT
FE1 Front Base Springs 22178728 AX
FE1 Front Shocks (Base) 10279660 A
FE1 Rear Shocks (Base) 10416668 TBB
FE1 Front Sway Bar (Base) 10227075 Orange Paint Circle
FE1 Sway Bar Bushings 10280525 Orange Colored Mark
FE1 Rear Sway Bar  (Base) 10283944 XA
FE1 Rear Sway Bar
Bushings (Base)
10401552 Orange Colored Mark
Option Description

GM
Part Number

Production
Line Code
F45 Front Spring 22178748 AZ
F45 Left Rear Adjustable Shock 22199889 * A49
F45 Left Rear Adjustable Shock 22186431 G3B Effective 3/29/99
F45 Right Rear Adjustable Shock 22139890 * A40
F45 Right Rear Adjustable Shock 22186430 G3A Effective 3/29/99
F45 Left Front Adjustable Shock 22186429 D29
F45 Right Front Adjustable Shock 22186428 D28
Option Description

GM
Part Number

Production
Line Code
ALL Stabilizer Bracket
(Holds sway bar to cradle)
10423035
ALL Clamps Front
(around rubber bushings)
10284830
ALL Clamps Rear
(around rubber bushings)
10283947

*Effective the week of March 29, 1999:
The Rear Shocks of the F45 Suspension were issued a new part number.

The shock manufacturer for all FE 1 and Z51 shocks is Fichtel & Flo - Florence KY
The F45 shocks are manufactured by GM's electronic division Delphi at another location
Front Stabilizer Bar (mm) - Base and F45 suspension 23x3.8mm     The Z51 Bar is 25.4x4mm
Rear Stabilizer Bar (mm) -  Base and F45 suspension 19.1x2mm      The Z51 Bar is 21.7x3mm

Notable suspension features and Notes:

Note: When reviewing your RPO codes on your C5's RPO Code Sticker you will notice that when Z51 is Selected the RPO code of FE3 (HEAVY DUTY SUSPENSION) is also there. FE3 is the RPO Code the Factory Production line employees use when building the C5 with the Z51 Package. At the Factory all FE3 Compents are COLOR Coded with either WHITE TAGS or a White Colored Crayon Mark.