GM auburn 10 bolt 8.5 30 spline posi unit works good,carrier bearings are good $140 shipped in the us
GM 3.73 ring and pinion gears good shape pinion bearing good $80 shipped us
$200 for both paypal accepted thanks
$

 

Will the auburn fit a 83 silverado diiferential.?

 

It would not fit an 83 unless you bought new 30 spline axles
the unit fits 89 and newer that is when they made the change from 28 spline to 30 spline axles

 

posi sold..