I little side to side is ok thats where the oil film will take place once oil pressure is being feed to it while running, if its alot enough to touch the housing you prob have to much and if it has much in and out play is also something to check out.
01,qc,4x4,6spd,s.b.ofe,rv275,edge jwa,banks exh brake, I'm thinking about going with an inline exh. brake, so i could go with a 62, but wouldn't i need bigger stix so it wouldn't be laggy?