(Fits SC10 line, requires #9880 AE steering block) Assembly is built from the outside in. Slide on the outer wheel bearing from the outside of the axle and slide assembly through the (AE #9880) steering block. Insert the roll-pin from the outside and slide on the hex adaptor. Holding the assembly by the hex adaptor, slide on the inner bearing along with thin axle shims and secure the entire assembly with the 4-40 locknut. Check for the intended amount of free play and spin the axle to check entire assembly. FEATURES: JConcepts design and function High-quality steel construction Design eliminates frustrating components Includes mini 4-40 locknuts