Just started bringing my GTP2-E up to speed. Made about 5-6 passes back to back with a 21T pinion. I would say about 75mph.
Took the body off, and inspected everything.
Found my rear center drive dogbone and outdrives very warm.
Anyone have any ideas, except for friction of the dogbone ears in the slots?
The front just slightly over ambient.
NOTE* The new Sweep EXP 50 treaded tires are holding up great!!!!!