Bigger rear tires would be the easiest way to get more top end speed,I have 20 x 7.50s and I only get about 45 MPH with a rebuilt 62 235. These trucks are very low geared, especially with the 2 speed diff. If you go to a 20 x 9.00 you'll gain 10 percent, about 5 MPH.
Last edited by Chris's 46 / 515; 06/28/2015 3:39 PM.
