Hello to all, I am installing the Air Ride 4 link in my 72 Challenger. The question I have is, what is the minimum clearance between the pinion snubber and the floor when the car is at ride height? I will be using coil overs with about 4" of travel. Thanks for your help.....Ed

with a 4 link .. you don't need one ..

In my opinion, the proper clearance for a pinion snubber is the exact distance from the garbage can to the floor-board.

Okay, No pinion snubber needed. I know I need clearance between the yoke and the floor to allow for suspension/shock travel, how much do I need? I'm not trying to sound like a complete idiot, it's that I have never done this before. The Air Ride kit specifies a shock with a ride height of 13", I am using some pipe and all thread I put together so I can dial in the ride height. When I set the ride height to 13", place a 1-1/2" spacer between the snubber and the floor than drop the car on the wheels; the pinion is pointing down to much(As compared to the face of the harmonic balancer). Also, the upper bars/brackets, which are only resting on the axle housing, are rolled toward the rear of the housing. I do realize that removing the snubber will help with clearance. Lastly, if I don't have a pinion snubber do I need bump stops for the axle housing? Thanks again for your help.....Ed