Originally Posted by Z7What

I have had many claim that but NEVER had one show proof. And if they were ever able to show proof I'd be willing to bet that they weren't the original owner to know if it was changed. A 9.75" in all Supercrews is also NOT true. A friends 2002 4.6L Supercrew Wayne

Originally Posted by Z7What

They never made a FX4 Supercrew Heritage in 04. The Heritage was only a Single Cab or uv

With that being said NO the rearend out of that 04 will not bolt into your 02.

The shock locations are totally different. Bolt pattern is different.

Just a FYI, a rearend out of a 99-03(or 04 Heritage) will bolt in your 02. Doesn't matter if it's a 8.8 or 9.75, there interchangeable. Another FYI is regardless if its 2WD or 4WD the 4.2L and 4.6L had 8.8 rearends and the 5.4L had 9.75.

Wayne

Originally Posted by 03fx

I've decided to rebuild. Now I know it's in inch pounds but is it possible to convert to ft pounds or am I simple? Does mesuring the threads work for pre load? Yhanks

Originally Posted by mbb

Rear ends are one thing i dont mess with. Ive seen them fail in a couple thousand miles when set up improper. They are super critical . get a complete third member at junk yard.

Originally Posted by Fordfan2006

There's why it needed replaced... Have You been in deep water? If so change the front diff fluid transfer case fluid transmission fluid and filter ASAP or you'll be replacing them too...

Originally Posted by blupupher

I think I read all Supercrews have the 9.75 regardless of motor, but again, I only read that, not sure.
Any supercrew owners with a 4.6 and a 8.8?

Originally Posted by ScrewThat

I own a 2wd super crew with the 4.6 and I have an 8.8 rear end.

Originally Posted by Fordfan2006

There's why it needed replaced... Have You been in deep water? If so change the front diff fluid transfer case fluid transmission fluid and filter ASAP or you'll be replacing them too...