Got a sweet deal on a xc 136 extra 10 skid. Looks like a 99 or 2000 or so. Has red indy swirl wheels and a 4 roller rear axle. Wanting to put it in a 2000 xcsp 700 that is now a factory 121. Whats the easiest way to do this? Do the front holes line up? Anybody got a map?

Not 100%,but front holes should be the same while rear holes needs to be moved back, as the rear arm is located further aft on the rails.

Ditto - Same thoughts Ivar has.