[EricH]

Originally Posted by 118 Tech

Now my next question to everybody is, the people who took the strategy of lowering the middle two wheels, how much should we lower them. Is the added size of adding roughtop SBR to the center wheels not enough or too much. By adding spacers under the pillow blocks of our axles we have the ability to get any kind of height differently we want.

Probably no more than 1/4 inch, and 1/8" would be better. You just want to have that middle wheel low enough that you get a slight rock on a flat floor. If your roughtop is thicker than the other stuff you should be fine without the drop. If thinner, you'll want more drop.