Clutch Noise - please advise

I want to thank everyone for their informative responses. This project has been quite a journey, lot's of ups & downs... but this is a real kick in the crotch, ha...

I had just returned home after FINALLY finishing the 400+ mile clutch break-in. I was going to take the wife for a spin, now that I could stretch the cars legs a tad. We get in, turn the key and it made this odd clunk sound and then the starter just spun, but the motor wasn't turning. After much trouble-shooting I discovered that the starter ring on the flywheel had come loose and it was spinning around the flywheel. UGH! I tore it all apart with a vengence, and it was a lot of work. From start to finish it took a couple months to finally get it all back together (I'm a busy dude). While apart, I did examine everything for any unforeseen abnormalities, but it all looked as it should, however I did replace the TO Bearing with an better one. I did have a hard time getting the trani back in, which was odd, as it went together just fine & easy during the original build many months earlier. I actually had to loosen the bellhousing bolts a little for it too finally 'fully seat' in the bellhousing. I've very little experience with 4-speeds and all the associated BS they entials.... which may now be more obvious than I'd considered. Lordy... maybe the bellhousing IS actually out of alignment... Well anyway, It's run just fine up until about 50 miles ago... That's when things started chattering 'a little' just once in a while... just a little and only in reverse. Now it does it EVERYTIME I'm start letting it out in 1st gear or reverse. I can actually feel groaning thru the pedal.... And it's only been together about 200 miles since getting it all together. :angry5:

Align the Belhousing? No idea how to do that at all, but I'll research it, figure it out. I don't know if that can be done with the engine in the car, and if I have to pull that engine, damn I'll just park the rig til winter. Summer is way too busy for all that drive-train drama AGAIN! Getting VERY tempted to go back to my drag race days and toss this 4-speed setup for a good 727! Well... maybe not yet, but whatever I do, "this time has GOT TO fix this flip'n problem"... besides - this is an original 340 H-code car by the way. Well enough whining!!

To do:
1) I will check (or hire a shop) and fix the bellhousing alginment.
2) I will have the trani openned up and gone thru. It's a used trani that 'supposedly' was freshned up with new bearings and synchros... roughly 2500 miles ago. At the very least I'll ensure the Input Bearing is replaced.
3) Replace the Pilot Bearing/Bushing... BUT I'm still on the fence: Should I install one of those newer Roller Bearing setups, or stay with the traditional Bearing/Bushing setup I currently have, as a couple have noted here. What's the vote guys..?

Either way, the car was finally ready to rock and now this... #-o