So my third gear is like done, from second to third at a higher RPM it will not go in no matter how slow you go... so I'm assuming its something with the syncro's thats not working.. HOWEVER, i have a TWM short Shifter, and im afraid if i bring it to the dealership this will void out my warranty?? and then i will effed... so my question is should i play it safe and reinstall the stock shifter.. or will i be ok with leaving the short shifter in?

 

I would love to hear a dealership try to explain how a short throw shifter would destroy synchros. You shouldn't need to put the stock shifter back in