Originally Posted by averagef250

Chevy didn't use many dana 60's and they definitely didn't use any dana 60's in the late 70's. Chevy used a few dana 60's under thier 72 and older leaf sprung trucks, but most had the eaton axles and they used Dana 70's under thier dually trucks through the 90's. Are you sure you don't have a 14 bolt? The 14 bolt is an OK axle. They are dirt cheap and better than a stock dana 60. The 14 bolts have a big ring and pinion, but pretty sad 30 spline axleshafts and the housings are very weak mainly because of the removeable pinion support housing. The best thing a 14 bolt has going for it is it's the cheapest axle to put a detroit locker in because the detroits are alot simpler and fit in place of the spider gears. Talk someone into trading for a ford 70B or sterling axle and you'd have something good for your truck.