4.6 or 5.4?
Posting Guru
Joined: May 2006
Posts: 2,486
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From: Iowa
8.8 rear axle is the 4.6l... and the 5.4 got the 9.75 rear axle... the tag should say some where.... if anything else the 9.75 has some big supports that mount it to the axle tubes... and the 4.6 has some dinky things that support it to the axle tubes... without a tape measure and recalling from simple memory id say the supports for the axle from the 4.6 would be like 2 in roughley and they 5.4 would be 3 in or better...hope this helps
Thread Starter
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Senior User
Joined: Dec 2006
Posts: 267
Likes: 0
From: New Mexico
Originally Posted by NumberDummy
VIN will have engine code. Either the 8th or 10th digit...sorry I can't recall which. One designates the engine, t'other is the code for the year.
Thanks everyone.
Hotshot
Joined: Jun 2003
Posts: 12,341
Likes: 4,366
From: SW VA
Here's the easier way to tell when you are out on the road.
Here's a pic of the Ford 8.8 that comes behind the 4.6L:
And here is a pic of the 9.75 that comes behind the 5.4L: Kinda small...but you can see the difference
Here's a pic of the Ford 8.8 that comes behind the 4.6L:
And here is a pic of the 9.75 that comes behind the 5.4L: Kinda small...but you can see the difference
