I've got some GM synchromesh that I want to put in my transmission Cause I just swapped out the clutch and flywheel. However, I can't seem to figure out how to put it in. I know theres a drain plug and then theres a another plug higher up to the right of the transmission. But when I put it in there, it just comes back out..... Any suggestions? Thanks

 

i just changed mine yesterday, and my fill plug was to the upper left of the drain plug. 17mm bolt. re you using the right one?

 

I think you may be looking at the plugs just inside the passenger side wheel well. Those are the wrong ones. They are more toward the middle of the car, around where the axle inserts into the tranny.