On a full size axle, you'll need a ram with 8" of throw... Something like a Toyota axle needs 6"... And I believe a Rockwell needs 10"...
Might not work but since it's just assist since there will be 2 mechanical stops in the way I'm willing to bet that you can run the 8" as long as you attach it to the axle housing an not the leaf spring mount like I did.

Idk. You know I'm the skeptical kind so I would be out there and measure lock to lock at the tie rod.
