I have a 1991 F-150 XLT Lariet that Has 204,000 miles on it. Yeah the eng and tran have been changed. Recently I had to replace the differential..The first switch was as bad as the one I took out....whined like a banshee! The second one which is in the truck now has a lot of loose play and will all most give you whip lash if you take off fast and sounds like someone with a hammer banging on the rear end. I can't afford to keep buying used units out of old 91's until maybe I will find a good one.
Does anyone know of a newer model unit that will fit without a bunch of modifications. I can replace the chunk but that is a little out of my budget.
Thanks

 

There is no "chunk" in the Ford 8.8" rear axle you have in your 1991 F-150. Any Ford truck 8.8" axle in the 87ish (or older) through 1996 will work as a replacement.

 

I was hoping that someone might know of a year model newer than the 90's that might fit. Most of the salvage yard units are much like the one I have (lots and lots of miles).
Thanks for the input.

 

Where are you located? I have a good one sitting in my shop that Im probably going to end up throwing away. 3.55 gears if I remember correct.

 

Thanks a million for the offer..However I live in a small town about 50 miles NW of Atlanta, GA

 

Wee bit far from western Canada haha.

 

Amen brother but efforts like yours makes me realize there are still some good folks in this world...Thanks again!

 

I agree with that statement 100%. I have never had any luck finding a decent drive axle from a salvage yard that didn't require some repairs to bring it up to par. On the other hand having a "spare" allows you to rebuild it then install at your leisure.

I have rebuilt several front and rear axles in my home garage with no air tools over years. It's not rocket science, but you do need a few tools and some patience.

 

Yup... Sounds familiar.