Inspection cover on TH350 and GMPP 350/HO
I'm finishing up my install of a new GMPP 350 HO into my 69 with the existing TH350 (it stayed in the car). When I went to put the transmission inspection cover back on, it interferes in the center radius and will not bolt up. Is the new 350 HO (1 piece rear main seal) a different size than 307 at the rear main clearance? How much? Looks like I need to take my Dremel router to the plastic cover... but I'd like to make sure that's the right thing to do. Or is there a different cover I need to buy?