When I did my clutch last year (on my 4x4 with MT75) the kit came with a plastic alignment tool of the correct diameter and number of splines. Burtons site shows it having a 1 inch x 23 spline input shaft. http://www.burtonpower.com/tuning-gu...box-guide.html. I am at work now but could check if it has this writen on it when I get home in the morning. I am in New Zealsnd so no use asking where I got it etc. Hope this helps David