10.50/6.60 Index class RULES

I've searched and cant find any of the regulations on the class.

I seen where there was talk about adopting 12.00 rules but once again couldn't find much on that.



I'm wanting to build a truck for TS/Schieds any other place that runs the those classes.



What limitations are we looking at?

Can the firewall be modded (swapped truck)?

Rear susp? 4 link prohibited?

DOT approved tires? Slicks prohibited?

Any weight limits? 4x4 vs 2wd



The truck will be caged, full dash, 5 point harness. etc.