[Large Arbor]

The things learned from mine was that most aftermarket hi torque starters did not engage enough on the flywheel. I did get a Robb MC starter and it is the right one. Did not try Tilton. My Tremec had a spacing plate between it and the bell housing. The bell housing was doweled which helped with the install. I had a brother help me put the transmission back in, but the last 1/2 ' was a bear to get it aligned just right. The one transmission mound bolt on the passenger side of the vehicle is a bear to get at with a wrench. I also got sage advice from others on this site that helped! I also used some small jacks to hold the block in place when the transmission came out. It helped a little. I did a thread on this and there are some pictures there that may help. I also used zip lock bags and a sharpie to label the bolts.

Phil