ok, so I split my case and put a stroker crank in and attempted to place a 4 speed shift drum in. the drum would not fit....so I figured screw it, I'm planning to buy a new set of cases and a 67mm bore kit so I could rock with the 3 speed for the time being. literally everytime I split the cases (it has now been 5 times, which is a super pain because you have to clean them to reseal them everytime) the tranny wants to act up. it will not shift, into any gears once the cases are assembled. when they are split i can see it actuating, any ideas? all thrust washers are there, nothing's missing, what is the culprit? before i split the cases it went through the 3 gears just fine