I inherited a '06 GTO T-56 with a poorly installed B&M shifter that I have been working on to properly install it. I found the instructions, which helped a lot.

My question concerns the round boot. I believe it's the one B&M supplied with the shifter but I don't see how it's supposed to seal very well. The shifter body has flat areas on the front and back of the body. The spring clamp seems to hold the boot on well, but there are two larges gaps at the front and back.

Am I missing something?

Also, what did you guys use to seal the shifter body to the transmission? I noticed the instructions stated that a gasket comes with the kit but that looks like it's for the rectangular "plate" that attaches to the trans case.