I have a 2007 f150 with an open diff....no LS. I would like to put LS on my truck and wanted to know what would be the easiest thing to do. I have a friend that recently had a front end accident and wrote off his truck. His truck is a 2007 f150 4x4. My quesion is can i simply take off his complete rear end and put it on my truck? Do all 4x4 f150's have limited slip diffs? Thanks, BART

 

If that was me I would unbolt the spring pack from the frame and change the entire assembly. I dont know but i would think all 4+4s would be Limited slip or if your real lucky a posi

 

The Limited slip differential is an option. You have to order it. Do not assume that the 4x4 has a limited slip. Check it first.

Regards

Jean Marc Chartier