A couple years ago I had my rear end rebuilt and they failed to torque the axle nut properly and end up backing off while I was driving and is now lost. Does anyone know the proper size bearing and seal for a 4.10 rear end. I need to replace all of this and been looking on partsgeek.com; any help is much appreciated.

 

What year,make and model is your truck (please update your profile to include this information)? Lastly, do you know what model rear end is under your truck?

 

9.25 rear end.

Axle nut? Would that be the pinion nut?

 

I just bought a master install kit for a 9.25 from Summit... $98.00... part # RAT-303K. Came with pinion nut, crush sleeve, pinion seal, pinion shims, pinion & carrier bearings and races, cover gasket, gear marking compound and brush... I thought it was a decent deal.