i have a 98 mxz 583 and i am going to install a 136"x1.5" or a 136"x1.75" track. just looking for the experience of others to offer opinions of gearing changes or motor changes to help turn the track. i don't care about topspeed i just want the grunt to be able to play in the powder without worrying if i have enough under the hood or in the gearing?? any input is appreciated. thanks..