Welcome to the Cart Tek Service Support Center.

The following video shows the steps necessary for replacing a drive collar on a GRX1200R/GRX1250Li gearbox. It will be necessary to first clean out the debris from the holes in both the drive collar and the axle. It is important to support the entire gearbox and axle on a solid surface while driving the shear pin into the collar and axle. If you have further questions, please give us a call. 541-633-4308