So I recently bought a 1997 F250HD with the 460. I have no idea what kind of gearing I have. I do know on a loose gravel road I only have one rear tire spinning, and would like a limited slip rear differential.

How difficult is it to switch? What will I need to do the switch? New gears? Whole new differential?

Thanks in advance.

 

if you just want a LS i dont even think you have to reset anything. just take out the ring and bolt it in and put the ring back it.

 

What's the axle code on the door jamb sticker?

 

Its code 35, which after a quick google search tells me its 4.10 gearing in a "regular" differential, not the limited slip (which I already knew).