Possi. Traction Rear End 1967
Short answer: Yes — all 1967 Firebirds have the eyelets on top of the pumpkin (they used the A-body GTO/Tempest rear), and the backing-plate-to-backing-plate width matches a 1968. Whether you got none, one, or two radius rods (traction bars) depended on engine, transmission, and (in one case) axle ratio. Per the 1967 service-manual supplement (which calls them “radius rods”):
| Radius Rods | 6-cyl 1-bbl | 6-cyl 4-bbl | V-8 2/4-bbl |
|---|---|---|---|
| None | Auto* | — | — |
| One (RH side) | Manual | Auto | Auto |
| Two | — | Manual | Manual |
* One rod is used if the ratio is 3.23:1. All 1967 Sprints came with factory traction bars. They can be adapted to a 1968, but the 1968’s staggered shocks and multi-leaf springs are a better setup — posi was an extra-cost option (except later on the Trans Am).
Any proposed updates, changes, pictures, and/or corrections, please use our comment section below (may need to click on permalink to access comments feature). Information is subject to change and offered as is without any warranties or guarantees. Please review our Term's Of Use for more information.
Content last modified: June 13, 2026 at 10:06 am
← Frequently Asked Questions
To add mystery to the traction bars on 1967 Firebirds, I have a 1967 Firebird 326 (purchased new) that has a 3:23 non limited slip rear end that has 2 traction bars from the factory! I have been told by everyone I have ask that has knowledge of this arrangement that it was to minimize wheel hop ? Really ? Why do you need 2 traction bars on a non limited slip axle??
Anyone???
traction bars were applied as indicated by transmission and engine choice regardless of posi or not. If manual trans with V-8 then 2 traction bars. I think there is a previous write-up somewhere on this website with the breakout of which got 2 which got 1 and which got none.
Not sure why I hear so many people talk about the mystery of the 67 Traction Bars. The service manual breaks it down. Here is a copy of it.
Attachment
Please note the * One rod is used if axle ratio is 3.23 applies to 6-Cyl / 1-Bbl / Automatics