ok so i got this car and i needed to replace the rear trans seal so i took off the driveshaft but i didnt know that you were supposed to mark it first but when i put the seal in and the driveshaft i started the car and the motor runs fine and it went into gear fine as normal well when i was going to back up when i was releasing the clutch the car started to roll back and the car just grinds and stops moving... the whole shifter shakes and its a loud grinding noise.. it sounds like its the transmission. well the throwout bearing was bad to so i replaced the throwout bearing with a ka tob from a friend for free and it worked for like a day and then it grinded again... a frined told me to repace my master and slave so i did and its still grinding.. so next i bought a used transmission from someone in tampa and it worked for about 20 mins and then it grinded again.. so i got an sr throwout bearing and i put that in and it worked for a day and it grinded again... so now im stuck and i dont know what it is.. also by the seal the trans part is all grinded up cause i think the driveshaft and that hit... i think motor mount could be bad cause the motor moves a lot..

the clutch is a spec stage 2 and it looks brand new.. the flywheel ahad some dings in it so i got is resurfaced and it still didnt help


any help will be appreciated!!!