I looked through all my receipts, but could not find the one for the tranny repair. I do remember that the repair was for replacing the synchros and input shaft with used ones, and a new gasket set. Total bill for the repair was 125 dollars. As for the T-10 sliders, I really don't know if they are or they aren't. I know they haven't been replaced since I've had the transmission, but prior to my purchasing it, I don't know. As for the synthetic oil, I used Mystic 75W90, which may be unique to my area ( Janesville, Wi.) As for the oils compatability with a muncie, I guess I have no information regarding that. This is the first time I've used synthetic oil in anything, so I don't have a lot of experience in that area. It sounds like the easiest thing to try at this point is to change the oil. What do you guys think ? ? ?
'69 Camaro, M-21, 4.11 Posi.