I recieved my new bands and bearing and seal kit for my T20 and got it all back togeather over the weekend and while trying to bench adjust the bands it all seemed well untill i noticed that there isnt but about 3 or 4 threads in the plunger. is that about right or shuold the bolts screw in further? All my measurements are the same and plungers go in and out 5/16s inch but seems to me that i should have more threads of the bolt in the plunger???