douglas, the part number for those spindle carriers is losb 2105. for some reason they only show them for the lst2 and muggy, but i am 99% sure that the aftershock uses the same suspension as a lst2. one other upgrade i would also highly recommend is the dynamite max life clutch shoes. i use these in every 1/8th nitro i have and they are BITCHIN. super long wear and they dont melt, mushroom, like the other aluminum clutches. i cant even count how many gallons of fuel these will last you and they are well worth the time to swap out and the money spent.