hey guys i love the site its very informative and has helped me out with many of my F-Body needs. but i was wondering if some one could tell me what type of rear end would be in my 1986 t/a 305cid is it Posi-trac or limitedslip or some thing like that cause when i do burn outs some times i spin both tires and recently i ve been only spinning one

 

Unless its been replaced over the years, your car came with a 10-bolt with 2:73 gears and possiblly a Limited Slip (AKA Posi). RPO G80 but this was a extra cost option and was not on a lot of cars. And If you had one, it may be shot because of too many BURNOUTS over the years.

 

thanks for the info