The Chevy trannies do wear out, all over worse than anywhere else! You might get away with a synchronizer and a parts kit, needle bearings, gaskets, etc., but be ready to do a replacement if it's got many miles on it. The Furds used to tear up, and the Chevvies would wear out!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!