Wltoys 12423 Car Spare Parts-00133-02 Upgrade Metal Rear Differentials Assembly and Upgrade Plastic Rear gear box cover ,Wltoys 12423 Rc Car Spare Parts Replacement Accessories,1:12 Scale 4wd,2.4G 12423 rc racing car Parts,On Road Drift Racing Truck Car Parts

Wltoys 12423 Car Spare Parts-00133-02 Upgrade Metal Rear Differentials Assembly and Upgrade Plastic Rear gear box cover ,Wltoys 12423 Rc Car Spare Parts Replacement Accessories,1:12 Scale 4wd,2.4G 12423 rc racing car Parts,On Road Drift Racing Truck Car Parts

When you  install the Metal Rear Differential assembly ,Some guy's Car will run Reverse .Some guys will not meet this situation . when you meet this situation, just reverse the inner metal Rear differential ,then can solve the problems

Also take care of the Red cirucle position on the picture as follow .if the Rear Differential shaft run not smooth ,just use scissors cut those position ,then will run smooth

 How to Reverse the inner metal Rear differential ,just like the picture as follow :