ASC31387 Washers 7.8x3.5x0.5mm Blue Aluminum These washer sizes work great as rear hub spacers (for adjusting the wheelbase) on the RC8B3 and RC8T3 series vehicles. Thicknesses range from .5mm, 1mm, and 2mm. Use them on your 1:10 or 1:8 vehicle wherever you need to tune your shimming. This part fits the following vehicles: B44 B44.3 GT2 NTC3 ProLite 4x4 ProRally ProSC 4x4 ProSC10 RC10 RC10 Classic RC10 Graphite RC10 World's Car RC10B2 RC10B3 RC10B4 RC10B4.1 RC10B4.2 RC10B44.1 RC10B44.2 RC10B5 RC10B5M RC10B6 RC10B6 Club Racer RC10B6.1 RC10B6.1D RC10B6.1DL RC10B64 RC10B64 Club Racer RC10B64D RC10B6D RC10B74 RC10DS RC10F6 RC10GT RC10L RC10L2 RC10L3O RC10L3T RC10L4O RC10R5 RC10R5-Oval RC10R5.1 RC10SC5M RC10SC6.1 RC10T RC10T2 RC10T3 RC10T4 RC10T4.1 RC10T4.2 RC10T4.3 RC10T5M RC10T6.1 RC8 RC8.2 RC8.2e RC8B RC8B3 RC8B3.1 RC8B3.1e RC8B3e RC8Be RC8e RC8T RC8T3 RC8T3.1 RC8T3.1e RC8T3e RC8Te Reflex DB10 SC10 SC10 4x4 SC10.2 SC10.3 JRT SC10.3 Lucas Oil SC10B SC10GT TC3 TC4 TC5 TC5F TC5R TC6 TC6.1 TC6.2 TC7 TC7.1 TC7.2 TQ10 Graphite Trophy Rat