8.8 vs 9 inch
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Senior User
Joined: Mar 2006
Posts: 138
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From: OREGON COAST
8.8 vs 9 inch
The 71 F-100 donor truck I'm getting parts off of definatlly has front disc brakes on it the gentlemen installed them about 4 years ago.He says he thinks the rear end is an 8.8 but isn't sure. These trucks came factory with a 9" correct,how can I tell by looking at it, sorry I know this is very basic stuff.My 66 has a 9" in it but he said to take what ever I want off the truck cause its going to the scrap yard so I might as well get another rearend if it is a 9" and if it is any idea what the ratio might be from the factory, it was a V8 manual truck thanks again guys.I traded a 302 flywheel for this truck what a deal!
Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
Posting Guru
Joined: Jul 2003
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From: Colville, Washington
The only two choices throughout the 70's in the F100/F150 are the Ford 9 inch and the rare Dana 44 rear axle. As mentioned the 9 inch has no rear cover, it all comes out the front.
Edit: The Dana 44 was last installed in the F100/150 in 1968, so the only factory rear axle for the 1/2 ton after 1968 was the 9 inch, until the 8.8 in 1985, as 390gashog has stated.
Edit: The Dana 44 was last installed in the F100/150 in 1968, so the only factory rear axle for the 1/2 ton after 1968 was the 9 inch, until the 8.8 in 1985, as 390gashog has stated.
Last edited by Putt; May 13, 2006 at 11:17 PM.
