Simple shims to adjust the mounting of the rear wing on Tamiya 1/10 RCs. I've made 1mm, 2mm, 3mm, and a 1mm to 3mm wedge shim that will fit many Tamiya RCs that mount the rear wing on posts with clips. You can modify these as you need.

I designed the wedge shim to specifically fit the TRF201 using the wing included with a Sand Viper body kit. This allows that wing to sit firmly and level using the front locations for mounting. The included shims Tamiya supplies are too thin and loose and allows the wing to flop around. The wedge shim they supply is also too shallow.