Pinion snubber problem

Have a 1972 A body with a narrowed Dana 60. Not a mopar Dana 60. So has no way to mount snubber. Thought about buy adjustable snubber from Mancini. Mounting it to the body. I'm afraid that it may tear up the housing without putting a metal plate on the housing for the snubber to hit on... Any thoughts or ideas

Pinion snubbers stop the differential from sweeping upward through the suspension travel and are consequently extremely harsh riding on anything but a smooth track or street. They do a great job of pushing the rear tires into the ground, causing body separation and increasing traction.

I run properly adjusted slapper bars on my A & E-Bodies. They ride much better and generate significant traction enhancements. No one makes a bolt on slapper bar that is properly adjusted out of the box, but once modified and properly fit, it is hard to find a better traction solution with a decent ride quality for street strip cars.