Z31 Anti-Sway Bar Differences
There are two different styles of front anti-sway bars used on USDM Z31. From 1984-1986, Nissan used a horizontal mount front anti-sway bar where the end link is a long bolt with spacers. In 1987, Nissan changed to a vertical mount swaybar. There were three front Anti-Sway Bar sizes available on the 1984 to 1989 USDM 300ZX. The following chart provides the models and size of the sway bar, front and rear.
Front Anti-Sway Bar Information
The following chart will display each part number for the various front anti-sway bars.
| Part Number | Size | Year |
|---|---|---|
| 54611-Z31001 | 22mm |
12/1983 - 03/1984 (FED.2S+CAL.2S).T/R.VG30T.GLL 09/1985 - 09/1986 VG30T 50TH |
| 54611-Z31002 | 22mm |
1986 Non-Turbo 1984-09/1985 All |
| 54611-Z31003 | 22mm | 1987-1989 Non-Turbo |
| 54611-Z31004 | 24mm |
09/1986-01/1988 Turbo 01/1988+ Turbo (GL+GLL) |
| 54611-Z31005 | 24mm | 01/1988+ Turbo SSM/T Shiro |
Bonus: You can also get the NISMO front anti-sway bar that is 26mm in size, part number 54611-23P01. This is the same sway bar that is found on the German Z31s of the same time era.
Rear Anti-Sway Bar Information
The following chart will display each part number for the various rear anti-sway bars.
| Part Number | Size | Year |
|---|---|---|
| 56230-Z31001 | 22mm |
1984-04/1987 All 04/1987+ Non-Turbo |
| 56230-Z31002 | 24mm | 04/1987-01/1988 Turbo |
| 56230-Z31003 | 26mm | 01/1988+ Turbo SSM/T |
Sources Used
- 1984-1988 Nissan 300ZX Factory Service Manual
- AZ-Zbum.com
- Shiro Front and Rear Measurements by: Chris Walsberg
- Nissan 300Zx Z31 Parts Fiche