Hey everyone I want to learnabout tranaxels. Who can help?? Come on lets share. Question "they" say u have to modify a late model main shaft in order to accept early model 3+4 gear ratios. Who ever they are. OK so where do I find out what to do and how to do it???? Is that the ONLY to change 3 = 4 th gear ratios.???? I gat a million more questions. Let talk. snipped-for-privacy@yahoo.com RKessler