First time posting in this section, I am looking for info for a friend. What does it take to bolt up a fb LSD into a rx3? does the axles have to be shortened? is it a direct bolt in? Anyone have experience with this?

Thanks,

Alvin

 

use small axle LSD (pre-83). no need to shorten the axle. While his at it, tell him to convert it to rear disc brake and buy the bracket from Billy

 

Thanks wacky, again, you've been great help =)

 

Hey guys,

I just popped in to research putting an FB axle from disk to disk in my '73 Rx3. I figured I would just grind off the mounts and weld on leaf spring and shock mounts where the Rx3 wants them.

Then I started wondering if they are the same width?

Anyone know?? My wheels already rub the lip in my quarter panels so I can't afford even a millimeter.