Optional Low Range Gearsets

[Mjh2157]

Hi,

I would like to change my low range gearset circled in the exploded view from the trx-4 tranny/transfer case. I have a 9t pinion and will have underdrive in the rear diff soon. But what I really want is to change the 1st gear ratio so it runs much slower with much more torque (very scale). I went through Traxxas's catalog of gears and there doesn't appear to be another interchangeable gear or gearset. It seems to me this would be the next evolution in aftermarket parts for the trx-4. Does anyone know if there are any aftermarket solution available? Again, I only want to slow down 1st gear. I thought about doing a holmes stubby 3300, gear reduction unit, and esp anti-spur setup. But I don't want to slow down 2nd gear. If anyone knows of any option parts out there, please let me know.

Best Regards,
Matt