Listen , I don't want to say I know what your case is. But my tranny wouldn allow me to get on reverse attempt in every hundred tries. We triple checked every piece before we drained the fluid. It had a lot of metal from I'm guessing synchros an gears. If you have what has happened to me here, I had mine shipped to shephard racing and their awesome to work with! Basically rebuilding with updates on pieces inside and replacing with HD exedy clutch. Sucks and I was scared to hear it, but I know it's done right. Plus I had the 4th an 5th gear grind on top of no reverse. It will only get more annoying . I hope this helps any of you. Does it act like it won't even come close to entering reverse btw? That's how mine is