[wagonwookie]

First of all let me say thank you for letting me be a part of your forum, now on with the questions. I have a 91 olds custom cruiser that I am going to be bracket racing and a little bit of street driving with and I want to replace the differential with a posi. If every thing goes right I am going to be running a 500+hp/500+tfp 383 with a TH350. Because the wife has me on a strict budget with this car I am wanting to replace the whole differential. If anyone can set me straight on what differential I might want to try and find that will nestle under the wagon without to much resistance would be a great help. Thanks again for any guidance and have a great day.

Wookie

 

[CHV_FRK]

do you know if you have a limited slip unit in there now or not? If not I think a positrax unit might work.

If you are definately changing gears you might just go with an eaton.