Hi T, i'm still confuse. coz all i know there's only 2 type disc rear axle for sprinter. the early model had smoller centre and lighter like what zack got now. i think his looks the same as ae71. soo how do i check if yours is the same?? or mine is 6.7" diff. i really want the 4,3 ratio as i think the na 4ag benefit alot from it. soo what size is the local drum end sprinter axle?? it looks the same as local ke70 or import ae71 with disc.