maybe running AE shocks and pistons ? The ae pistons don't fit the 501X shocks unless you give then a bit of sanding so probably not using them in the kit shocks.
OR perhaps they are referring to the pistons by their AE numbers, so the largest holes would be piston 1, smallest piston3
I have mine built with piston 1 rear and piston 3 front - same as my BJ4 worlds
|