headlight grinding, are they rebuildable?

I have a 99 T/A and the R/H headlight grinds after going down. Are they rebuldable or is there a fix for this?

Usually a problem with the plastic gear being stripped out. You can fix it by flipping the gear (only 1/2 of it is actually used), or by replacing it with a metal gear. Search one of the LS1 specific sites for more details...

good luck,
Shane

Check out www.projectransam.com brent franker has a write up there on how to rebuild them.

buy the replacement bronze gear from brent and don't deal with it anymore, GM should have used these in the first place.