8.8 compatibility question

Reply Subscribe

Thread Tools

Search this Thread

Nov 30, 2008 | 08:20 AM

Talyn

Thread Starter

Hotshot

Joined: Oct 2003

Posts: 17,791

Likes: 99

From: Ashland City, TN

8.8 compatibility question

Is there any major differences over the years that would make a newer differential not fit in an older rear end?
I have an 87 axle, but need a new carrier, and the carrier i found is a 2000ish.

Nov 30, 2008 | 08:23 AM

Talyn

Thread Starter

Hotshot

Joined: Oct 2003

Posts: 17,791

Likes: 99

From: Ashland City, TN

Spline count: 28
Casting#: F5AW-BB
Other casting markings: 6F05 (Maybe the date?) & WF9

This is the info i have on the newer carrier.
I have a 95, but my axle is from an 87.
The tag said LS on it, but it is an open rear end.
I'm tired of it and a member has this new carrier to use.

Nov 30, 2008 | 12:52 PM

85e150

Super Moderator

Joined: Apr 2004

Posts: 34,475

Likes: 2,800

Any info on a tag? Look for "WEG" or similar. "WF9" does not appear in the decoder ring I'm looking at.

Dec 1, 2008 | 01:05 AM

aurgathor

Cargo Master

Joined: Aug 2004

Posts: 2,899

Likes: 2

From: Lynnwood, WA

For one thing, the bolt pattern is different. There should be plenty 8.8" of the correct vintage. (until '96)

Dec 1, 2008 | 04:18 AM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

Likes: 784

From: Simi Valley, CA

Quote:

Originally Posted by Talyn

Is there any major differences over the years that would make a newer differential not fit in an older rear end?
I have an 87 axle, but need a new carrier, and the carrier i found is a 2000ish.

The 8.8 is an integral rear axle, which does not use a carrier. A 9" has a carrier, not an 8.8.

What part do you actually need?

If you need the case that the ring gear bolts to, the same one (E7TZ4204E) was used from 1987 thru at least 2001, but after 1996, the axles will be different, because Ford went to metric wheels in 1997.

Dec 1, 2008 | 05:04 AM

phil6608

Post Fiend

Joined: Jan 2007

Posts: 18,157

Likes: 0

From: Stanton DE

Quote:

Originally Posted by Talyn

If the tag said LS,,I would say there's a good chance you just need a rebuild kit for the LS diff.

Dec 1, 2008 | 10:13 AM

Talyn

Thread Starter

Hotshot

Joined: Oct 2003

Posts: 17,791

Likes: 99

From: Ashland City, TN

Quote:

Originally Posted by phil6608

If the tag said LS,,I would say there's a good chance you just need a rebuild kit for the LS diff.

I know the difference between an 8.8 LS and an 8.8 Open.

There is no place for clutches on my rear end, its just all free moving.
I had the clutches and everything ready to go, and ... I was confused.

Thanks for the answer Numbers Dummy, I shoulda just Pm'ed you in the first place, cause you know this stuff.
That is the answer I wanted to know. =)