Drivetrain Questions and Suggestions

318/904 combo is great for puttering around . We use a modified 904 in our 10 second car . Just needs upgrades . I'm not a big fan of 8.25" axles just because of the limited options of ratios but if that's all you have , use it . When starting a build lots of folks start with the motor which I believe is backwards . Start at the back and work your way forward nont including maintainance . Hope this helps .