420/500/520 DCT(Auto+ES) Billet Primary Gear Reduction

SALE ON 25% $200 OFF!!!                                      25% (preorder) 40% (preorder) These are our American-made primary gear reduction offerings for the Rubicon 500/520 DCT and Rancher 420 DCT. Model designation on frame decal must include an "A" such as TRX420FA. The 25% will drop in without case mods. The 40% requires cutting extra clearance in the front crankcase cover spacer in two small areas. The reduction changes the speed readings to the ECM so full throttle auto shifting is affected but driveability is retained. If you choose to correct full throttle auto shifting we offer ES modules that correct the speed readings. You will need one module for the Rancher 420 and two modules for the Rubicon. Modules can be found in the machine model and parts sections. We now offer this reduction kit two ways due to it being a core type reduction. There is a "Customer Core" option ($675 for 25% or $725 for 40%) where the customer sends in their stock clutch hub (23100-HP7-A00) to be mo