Is there a way that I can see or know wath kind of rear and front differentials I have (7 1/2", 8 1/2" and so on) on my 6.5TD K1500.

The reason I ask, the seals on the back differential are worn and the Carquest listing includes 3 kinds for my model :eek: .

Thanks.

Daniel.

10-bolt 3.42 or 3.73 I would think. don't know the ring gear size off hand.

I finaly checked and to my suprise it's a 14 bolts.

Thanks.

8.50 front and 9.50 rear

Thank's Rick.

By the way, nice truck.

Daniel.

Thanx for the comps... BTW this is the same rear axle used up to 98 or so on K1500's with F44 pkg, also on SS 454 trucks