I'm looking to rebuild my rear end due to a whine that's developing. With 230k I'll say it's done a good job.

What is the part number for the correct Detroit rear differential for a replacement? I have 3.73 gears if it matters.

Thanks!

 

Is your truck a single or dual rear wheel and what model chassis?

 

It's a 2002 Excursion. So single rear wheel and chassis would be the F-250/Excursion chassis. If there is something else, where would I find that? The gear ration is 3.73

 

The Detroit/Eaton Trutrac for your EX is: EAT915A550. This is what I have. I also replaced my ring and pinion and all the bearings in the rear.

 

Thanks! That's the plan to do a complete rebuild.