i bought a posi unit from the classifieds on here a few days ago and it said that its a 3 series carrier. what size gears will this thing take?? its a brand new unit and i believe i got a great deal on it. i just need to know what size gears to go back with. any help would be greatly appreciated.




this is going into my 1991 RS. the guy that i bought it from had a ex-girlfriend that poured sugar in his gas tank and he didnt know it. so i got the car and added a mildly built 350 to the mix and now she is my baby. and also does anybody know any good aftermarket radiators for third gens?? my car tends to run a little warm and i dont like it. the car has 28 spline axles and has 3.08 gears i believe. thanks guys.

3-series is 3.23 and up (3.42, 3.73, etc.).

3.08 is 2-series, if you can believe that.

aight man i appreciate the help. i have a rear end with a set of 3.42's or 3.73's in it. but im not really sure is there an easy way to find out??