no all blaster A arms are the same, my 2001 has threaded bottom ball joints and my buddys 89 has a squeeze type on all 4 balljoints! has anyone else ever came across that problem? or even known about it?
Yep, they went the tapered lower ball joint shank in mid '89. The rest are the same from then on with the exception of the '03s and up have the mountings for the Yamaha standard disc brake components.