Rear Diff.

jaythejug · Post by **jaythejug** » August 30, 2011, 9:50 pm

Hey all! Im pulling my hair out trying to find this information!! Ive done all the searches and looked in many catalogs but, still no answer. I have a 66 f100 custom cab, long bed, 352 FE, CruiseOmatic 3 speed. I just need to know what the rear end is. Luckilly (I thought) I still have the ID tag on the axle. the numbers are as follows:

WDM-H
3 25 6FA 3B

There is also a 42 DIF and 12 DIF formed into the front of the differential.

can anyone point me into the right direction??? Thanks!

Dirky · Post by **Dirky** » August 30, 2011, 10:02 pm

Big bearing Ford 9"

Should have 3.25 gears.

28 spline axles. Open differential.

For future reference:

http://www.fordification.com/tech/rearends_ford04.htm

jaythejug · Post by **jaythejug** » August 30, 2011, 10:09 pm

Thanks Dirky!! I really apreciate your reply!! im still a newbie with my truck. Im trying to read everything i can to get educated. Thanks again!!