Ive got a '94 3500 that has a Dana 80 in it. We use it for sled pulling and I have now found the limits of the stock ring and pinion. It has 4.10 gears and a detroit locker. Two pulls ago we stripped the ring gear out. I just figured it was bad luck and found a deal on a set of stock gears, so i replaced the gears with O.E. parts. Well evidently I was wrong because the next pull we went to, that the turbos actually worked, it stripped those gears out. I thought that folks used D80s for drag racing, but I can not find a single set of aftermarket gears that might work. I did however find a few aftermarket brand gears, but the salesmen assured me that they werent as strong as the stock ring and pinion. So my question is does anyone know of any high strenght gears for a dana 80 or any axle equivelent to a Dana 110 that i have a chance of finding in the junkyard with 8 lug wheels. Im not worried about the width or how hard it is to put it in the truck Ill make it work, oh yea I need to have the truck ready by sat!

 

try lower gears it wont take as much force to turn the wheels. and it will take alot of pressure off of the driveline.