Thanks guys,

As usual, you all provide and great information and insight. I sent you some email questions directly.

Xram53, I haven't had the truck running but, I believe the drivetrain is the original since it is the sealed driveline. I also haven't had a chance to clean all the crud off of the trans to get the numbers for positive identificaiton. I hope to get to that in the next week or so.

I will let you know what I come up with.

Thanks again to everyone.

If you didn’t skin a knuckle while you were working on your truck, you weren’t working hard enough!

53 5window 1/2 ton
54 3window 1/2 ton