N H R A rules state that the loop must be installed no more than 6 inches behind the front U-joint. If you don't mind more holes in the floor, it's a good idea to install one in the rear as well. See ...
Here are some tips and tricks about U-joint maintenance and repair: 1. There are two types of U-joints: greaseable and non-greaseable. Equipment manufacturers specify U-joint lubrication intervals in ...