If your servo case is cracked from a crash or worn at the mounting lugs

which is important for consistent power transfer from the engine

Set contains 5 pieces

The ESC uses a special process

(1) 1/12 NASCAR Fantasy RC Racecar

Traxxas 10239-RED Draglink Steering Aluminum Red Ford Fiesta Parts If your servo case isSteering draglink machined from 6061 T6 aluminum with a red anodized finish. The draglink carries motion from the servo side of the steering across to the bellcranks. Any flex or bending here is felt directly at the wheel as delayed, imprecise response, and because it sits low and forward it is exposed in a front end impact. Aluminum resists the bending that ends a run. Fits: Traxxas Maxx (89086 4), Maxx Ultimate (89087 4) and Maxx Slash (102076 4).