Vevor Go Kart Forward Reverse Gear Box 10T #40/41 12T #35 Go Karts Accessories TAV2 30 40 41 For 2HP-13HP Engine, Transmission Local Honor, 3 Shift Modes, ONLY Works with 30 Series Torque Converter

I used this gear box to add reverse to the go kart I built. It has worked amazingly well. After over a year of hard use, it's still going strong. It made it through one incident where the kids revved the motor and shifted into gear. The key sheared off the drive sprocket, but the gears weren't damaged. I will definitely buy another if this one ever fails.

All necessary parts included, well packaged.

Works great

The gear box was a perfect fit for our kids’ Hammerhead Mudhead 208r go-kart. So far it works great and arrived 3-4 days early. Very pleased.

I dislike that it did not have a bracket and I had to find it from go power sports.The package was not great but the worst was they forgot to put hardware for it. And also my sprocket on my kart is 530 so I had to find a specific sprocket to fit the transmission hope that a c-type #50 5/8 bore will work, if anyone is also doing this please give me some advice?Thanks

No more getting off to move backward. Set up is fairly easy and it seem to be a real solid unit. I did have to buy another sprocket for my application, but easy to source here on Amazon.Price 5 starsValue 5 stars

Poor design for transmission gear selection. Gear selection cables does not adjust properly and does not come with instructions to find the proper engagement. I must press the accelerator to disengage out of forward or reverse. Not happy with this purchase…

Overall seems pretty well made make sure unit is filled to correct level with lube. I used 80w90 non synthetic gear oil. Securely mounted and sprockets aligned, unit should perform as expected