noz69


low 40's means the rollout of the car,there are a couple of sites you can print out rollout charts for a tc3 i dont have them in front of me a this point but someone will let you know im sure

on my tc3 i ran in 540 [when i had them] i used 68t spur & 32-35 t pinion depending on the track layout,you cant really go much bigger in spur size than 68 for 540 because the motor will hit the chassis & no more motor adjustment is available,hope this helps you

professor