This is a replacement 48P 76T spur gear from Traxxas.
Wednesday, May 21 2014 (about 6 years ago)
Traxxas 48P Spur Gear (76T)
I got this part for my Traxxas Rustler and oh my God! This an amazing spur gear! I was also running a Traxxas 48P pinion gear 31(T) and I would highly suggest to get this pinion gear to go with. One more thing, it likes to do a LOT of wheelies so I would also suggest to get a wheelie bar for your RC car.