Or just make the channel larger on the 7075 and have a brass insert you could drop in. If you wanted to tune the weight of the trailing arms, not sure it's really going to make much of a difference but a small advantage is still an advantage I guess.
more or less fine tuning the rear axle lift up on turns to turn "less" cause once one wheel lifts up, the trucks turn on dimes! :shock:
I could definitely drop a sec or two if I wasn't drifting every corner to compensate for oversteer. its hard to see in the videos but in the back far right corner where the s turns are.. my truck is slideways :ror: