Help getting T56 into revers!
 

I've got things coming together and I installed the driveshaft today and decided to try and move the car under its own power. I was not able to get the tranny into reverse while the engine was running. I do have a reverse lockout wired and it is functioning correctly. I do not get any grinding at all it just seems like the shifter hits a wall when I try to get it into reverse.

If I shut the engine down, slip it into reverse then start it up everything seems to be fine.
I have no problem getting into 1st or 2nd and the clutch seems to be engaging and disengaging just fine.

When I get it into reverse and start the engine it does seem like the engine drags just a little but the car does not try to move. One running and in reverse the clutch engages and releases fine.

Can anyone offer some insight or help?
Thanks

If it does not go into R when the car in running but will when the car is off and it will go into the other gears then I would have to say it must be the lockout even though you say it is not. not many other reasons.

Thanks James;
Is there a way to test the reverse lockout to make sure it is functioning properly with the engine running?

How is the lock out wired?..

Im thinking it must not be getting power when the engine is running.. just try to jump it to eliminate the possibility.. I bet that's it..

With muscle you should still be able to get it in reverse with the lockout not even activated.. just another angle to help narrow it down ;)