Originally Posted by mike ivy

Hey 6g72tt,

The difference between the two are the .063 plate is a thinner T-plate (more flex) you can use for low bite carpet or asphat tracks this plate provides more grip.

The .075 is stiffer (less flex)you can use this when the bite comes up this plate is thicker.It also give you more steering.

As for gluing the side walls you can glue the front side wall you can use this as a tunning aid if your front has a bite to much steering this aid will clam the front down.start off with out and see how your car feels first and then try it out and see how it feels to ya.

Tire size I would recommend a 1.70" front and a 1.80" rear keep your ride height about 3.5 mm front and rear. this tire size is a good balance between longevity and performance.

Hope this helps if ya need more help feel free to ask.
Mike