stock 400ex shock rebuild?

[muddy400EX]

ive heard the rear shock on teh 400 is rebuildable. so i was wonderin if there are any companies that rebuild stock 400 rears to be better like there is for 450r's. like maybe a dual spring set up or somethin. anybody know?

[Unverfehrt400ex]

ive heard that GT Thunder rebuilds shocks. my ex rear shock is gettin pretty bad its just about done for. im gona have to give them a call and find out a little more about it

[muddy400EX]

same here. my shocks are gettin terrible, they bottom out on the smallest jumps:(

[prepracing]

GT thunder, Derisi racing, C & D. I had JPMX do my 400ex rear shock with the Elka dual spring kit and revalved for my weight. It rides great now for XC racing, no more rearend kicking when your running thru rough terrain. GT thunder also has a different shock linkage that I hear works real well also.