I would toss this in the newbie section but I figure it is Toyota specific. So I have what I believe to be a 79 pickup with a 20r. I have replaced loads this winter while it is down and of those things was the clutch, flywheel. When I went to start it a week ago it had a bad clunking coming from the trans bell housing area. Come to find out it was the starter gear slipping on the flywheel teeth. I ordered a new starter and put it in today and it still does it. Not as bad mind you. But it didn't so it at all before. Shimming out wouldn't help anything I imagine, due to the fact that it isn't engaging all the way as it is. The only thing I can think is the prior owner told me it was an 83 so I ordered my flywheel/clutch for an 83. which I know every 20r/22r share flywheels but not clutches. It is an L43 with a 20r so I just don't know anymore. The clutch shouldn't interfere with the starter engaging. And it shifts and drives fine. I give up guys. Load me up with shit I don't know about Toyotas, please.