So I got a 3.55nls in my 06 f150 Im looking to upgrade to a locker. Any idea of what model year and vehicles I could pull the differential out of and have them work?
Ive got the 8.8 rear so I'm guessing one of the crown vic or mustang lockers would work Im just not sure what axle code would be the 3.55 locker/trac loc. Anyone got an idea what model years aside from an f150 would be easily swapped?

 

3.55 LS is axle code H9.

 

If you are switching the complete axle, make sure you get one that has the tone ring in the diff. Not sure what year they switched from the wheels to the diff, just something to check out.

 

the splines on the axles are diff. one is 28 and one is 31. i believe trucks have 31, but not sure about the Rangers. If your talking just the chunk swap. rossford

 

Yea Ive had a few people tell me that you can put an 03 cobras 3,55 trac loc into the f150s but I havent heard of anyone actually doing it wanted to make sure before I wasted the money.

 

yes, I understand some newer Ford cars have the 31 splines. Should be no issues but I haven't personnally done it. rossford.....