Trans ratio

[romulus22]

I'm using a GT trans in my car due to its lay down style. Looking to lower ratio to 2.25 if possible. Will the buggy gears fit the case of the GT trans or is the spacing all wrong?

[Phin]

The top shaft and idler are the same but the 2.25 diff will be too small and won't mesh with the idlers.

[romulus22]

I had a feeling it was just a diff gear. Thanks.

[Phin]

You've got a lot of room to move the motor with the motor plate on that car so maybe you should go to 64p gears and use a tiny spur and giant pinion.

64p can go as low as a 74t spur and a 65t pinion.

[romulus22]

Right now my biggest combo is 69-50 with 48p gears. The 64p is fractionally better. I think I'm going to have to take a different route. My brain is conjuring up ideas already. Just to execute my idea without a mill, cough cough, to any home machinist out there

[romulus22]

New question, is the top shaft gear a press fit gear or is it all one piece? One side looks solid the other looks like 2pc


Edit: spline pressed on gear