REPLACING A 8.8
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Senior User
Joined: Jul 1999
Posts: 246
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From: Monroe, NC
REPLACING A 8.8
I have an 86 F-150,EFI 5.0L with an AOD and a 8.8" (I think?) 3.55 non LS rearend and I was wondering if it was possible to replace it with a 9" out of a 69 F-100. If so how difficult would it be. My brother has a 70 and a 69 that he is going to make one good truck out of and he is not going to use both rearends, obviously. I know that the Ford 9" is one of the best around so if it is farily easy to do I would like to swap them out.Also I would like to make the 9" limited slip if it is not one already. Does anyone know the axle codes for the 69, I don't have the manual unfortunately.
Posting Guru
Joined: Nov 2001
Posts: 1,098
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From: Raleigh, NC
REPLACING A 8.8
you axle now is a 8.8, that 9" should bolt right up, its not hard to do at all, really easy actually. ive hide to help put a 500lb 1ton gm14bolt on a truck, it wasnt fun but it wasnt hard at all.
Thread Starter
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Senior User
Joined: Jul 1999
Posts: 246
Likes: 0
From: Monroe, NC
REPLACING A 8.8
Thanks for the info guys, I think I am going to get a locker unit of some type and install it in my 8.8. Just from reading some of the other posts on the message boards that seems like a good way to go. 
