H8Mac

car will pop out of 3rd gear and grinds a bit when this happens. Trans was rebuilt with d&d performance parts all new synchros and not really sure what all else, stock clutch , stock hydral. stock everything! i know the TO is making some whinning noise when depressed, car is very tight going in and out of gears, 3rd sometimes is to tight to bang, and will make some grinding.... Any ideas on what this could be? Also the Flywheel was resurfaced. clutch looked good when i took a look at it! Also if i hold it in 3rd for a short period of time it stays in with no problems but other then that it pops right out. Also had the Clutch sticking to the floor problem when driving hard. Basically my drive line is f'd right now please help guys!