2N Magneto drive assy- Have 2 mag drive assys 1 has all but completely seized up the matched set of gears are fine. I think the problem on both are the bushings, The one that is about seized completely must have the bushings balled up. The other one is on a running tractor and the drive assy is emitting a galling noise, smooths out then growl and smooth out which I think is from the bushings. My 2 fold question how do I get the bushings out? It looks as if I will need to press the gear drive from the mag coupling and not bust the cast housing in the process. Second ? is where the cam and the drive mate the lugs are not a different size as the drive lugs are on a front drive dist, is this a correct deduction? Rather the lugs seem to be off center, ya or na. on off center.