When I put this engine in, I bought a custom tube from Gennie Shifter. The tube was always hard to get at. When installed, I cleaned the tranny area, installed with the o-ring and rtv blue sealant. I'd heard from many sources on leaks in this area. Mounted the top of the flexable stainless wrapped tube to firewall. No leaks, looks good and easier to check fluid. A little spendy but to me it was worth it.