Reverse always pops out
Thankyou for who ever started LS1 TECH
Two things to check first:
1)Are you getting it all of the way into reverse. Try putting it into first, then reverse.
2)The other thought is that you may have some clearance issues with the shifter and boot, especially if you have an odd shaped aftermarket shifter. My noise suppression boot was pretty tight at first, and it would sometimes yank the shifter out of gear. It eventuallly 'broke in' and stopped popping out. Check all of that out first, if not, that tranny probably has to come out.
good luck,
Joe



