Is this worth it?

[82 GT]

Originally posted by crazypete

Mind you, I never actually opened up the t5 to look at the synchros so I'm talking out of my *** in a way, but why else would it be unshiftable?

Probably because of the worn plastic clutch quadrant. There are many reasons why trannys won't shift correctly.
In most cases, it's the 2nd gear synchro that go bad first. I don't think I've ever heard of all of them shot like that.
That's why I say it was probably the worn clutch adjuster.
REDLINE ATF might be good stuff but it's not magic in a bottle.