ST Racing Concepts CNC Machined Transmission Layshaft

I've used this shaft on five different traxxas transmissions ranging from an 1/8th scale Chuckworks SCB buggy-build to several Factory Works chassis carpet builds. I have had zero issues and highly recommend this upgrade. Replacing the stock drive shaft with this piece allows the use of several different slipper set-ups, my favorite so far is the VTS system. This is a must do upgrade for me whenever I have a transmission apart. Many others who are part of the Traxxas forum have done this upgrade and I haven't heard anyone have issues.

The idea is there but the design has its flaws. The top drive gear off the stock traxxas 2wd vechicles does fit but not snuggly on the shaft. It should be a snug fit but isn’t. Because it isn’t, you would need to re-shim it with custom shims/ washers. Also, because it isn’t a snug fit, tightening down the slipper too much would also cause the gear to slip off the shaft. And if you do nothing mentioned above and just leave it loose, it will make a loud clicking noise every time a throttle adjustment is made which will slowly deteriorate the drive gear. Overall good concept to get rid of the terrible traxxas slipper but it’s not a big step up.