Get this;

[M2C7080] M2C Racing Losi 8ight Rear AntiSquat Plate (3° Toe/3° AntiSquat) w/ Front Block

$10 more but it comes with a f/r plate, and it uses TTR pivot balls to hold the hinge pins so if they ever wear out you just replace them (<$10) whereas when the khz plate wears out, you gotta buy a new one.