Pontiac Firebird 1967-2002 - differential noise on 1999 trans am




17-Ws6-rick
08-16-2012, 11:20 PM
my differential is making a noise, my car doesnt have traction control and i have a replacement rear end that does have traction control is their anything i can do to put it on my car with out the traction control or fix my differential?


brendo389
08-17-2012, 12:22 AM
What is the noise? If it's whining under deceleration then the problem is likely a pinion bearing that has gone, but it can be anything really.

17-Ws6-rick
08-17-2012, 10:47 AM
yes it is a whining noise, what would i need to fix?


Paul Bell
08-17-2012, 06:00 PM
The direct answer to your question is no, here's why:

A car without traction control has three channel ABS with the sensor in the diff.

A car with traction control has four channel ABS with sensors at both rear wheels.

The brake lines are different also.

17-Ws6-rick
08-17-2012, 11:52 PM
what differential can i switch it to? which one is compatible with my car and has no traction control?

Paul Bell
08-18-2012, 06:28 AM
You need to find a three channel rear and swap it in. It'll have an electrical plug in the top of the housing.

You'll also need to match your ratio.