I'm replacing a 216 with a 235 in my 51 3100. The 235 came out of a 55 chevy Belair which had an automatic transmission. When attempting to install the original 3 speed it stop short by approximately a quarter of an inch of being fully seated. Can I trim that 1/4" Off the outboard end of the clutch gear which is just past the splined end. Any assistance would be greatly appreciated
