Planehauler

I studied the threads and the Haynes Manual to replace my rear seals and bearings. Identified my diff from the tags as a 9.75 LS differential and bought the bearings and seals. Things were going like a house on fire, until I grabbed the new bearing to compare to the one I pulled out. It is close to 1/2 inch to large in diameter. How can this be? Did Ford mix up 8.8 axle tubes with 9.75 diffs or does my diff have the wrong tags on it? In either case, I'm up the creek now since I have my bearings pulled and no transportation.

A7X

How many diff cover bolts does your rear have?

Also what year and package are you running?

2003XLT

You better have some patience the clips holding the axles in the diff are a PITA but after that you will be fine

A7X

He already has em out...

2003XLT

My bad I i didn't mean to post it on this thread disregard

Planehauler

My diff cover has 12 bolts. The C clips came right out. Made me nervous it was going so well. Of course, that's all changed now bahahahahah

It's a 2002 XLT 4x4, 5.4L

A7X

So it's the 9.75...

Just curious if the 9.75 LS was swapped in...

What's your axle code on the door etc etc... The more info the better...

What's the part # for the bearing they gave you?

Planehauler

The part numbers for the bearings I got were Timkin R1561TV. The door code is H9. The diff tag says 2C 13 (from memory it is outside)

A7X

Nice, so that's a 9.75, 3.55:1 LS diff...

It sounds to me the jamoke at the parts store just gave you the wrong bearing....

Foxhound_22

If I am not mistaken Ford has two different size axle tubes for the 9.75, I had a similar problem when I had to replace a rear axle shaft end up getting the wrong size it was to big, best bet with mic it or call Yukon axle and gear that's what I did and they were happy to help and gave me the right size