Aw4 swap torque converter problem

After doing research and going through the 2 threads on the aw4 install I wanted to do my own aw4 install for my 72 javelin with 401 so Got the transmission with torque converter from a 96 Cherokee, ordered flexplate on line, Was in the process on installing it hoping it would be an easy install but ran into a problem with the torque converter snout or the ring or disk part of it not going into the crankshaft creating a 3/8 gap between the torque converter and flex plate mounting bolts. Took the torque converter off measured the snout disk part and it’s 1.813 od. Measured the crank hole, I didn’t have snap rings or dial caliper to measure it up just a tape measure, and measured 1 11/16 which i converted it to decimals and its 1.6875 which no way it’ll fit. I’m wonder if someone else ran into this problem and either machined it smaller or used another torque converter or I’m I just the lucky one that discovered this new problem??

It was bolted up to a th400. I didn’t realize they put a ring in there for the Chevy trans. Will check and give an update on that

I wanted to get my flexplate matched balanced at a local shop hear in Fresno, the only place around hear that would do it, but he didn’t want to take the job even tho I insisted and recommended me just take off the weight from the 401 flex plate to the 4L flex plate which I just ended up doing. I’m taking a risk but if it vibrates I’ll take it out and send it somewhere else to get it matched balance.