Built from a customer-supplied donor using the highly successful Tran-x Rocket gear kit the assembly also incorporates new gaskets, seals, bearings and a new baulk ring set. Along with this Tran-x also fit their one-piece aviation spec. selector finger together with an alloy lid and breathing system. This means you are purchasing the best product possible which will provide tireless service as well as giving you increased performance. Please use our brand new speed calculator to help your ratio choice.

All main shaft gears utilise high performance coatings to reduce friction and aid oil absorption, these high performance kits produce a long lasting driveline component. Full gearboxes can be assembled by our highly experienced technicians using a supplied donor item. The builds come with our alloy lid and breathing system as well as our heavy duty one piece selector finger made from aviation material.

Ratios (Donor box supplied by customer)