HELP I seem to have broken my output shaft from my joyner 800mv.
Joyner wants $100 for part. My question is has anyone had to replace this and have any how to's and anything I will need to make sure it all goes back together well. I am attempting this myself so any input would be great and if you know how to get the broken output shaft out of the driveline woudl also be appreciated. Oh yeah its an '06 Carb

Pretty much everybody has broken one of those. This was a HUGE problem on the older 800's. I believe Gorilla Axle makes a stronger one for the Joyner...

do they make them for the 650s also?

The 800 carbureted and 650 engines use the same transmission. Joyner sells an open differential kit if you are interested.

The splined section is hardened steel, but you can drill into and tap it so you can install an extraction bolt or puller.

The Gorilla axles will not help the issue of sheared output shafts.

they do sell an open differential? Do you happen to know the cost? I figured there was going to be no easy way to get that broken piece out. So pretty much no matter what I do this will keep happening?

Contact DoonRunr off the trusted deal list for the open differential:

list-trusted-dealers-t17576.html

Whether the output shaft shears is dependent on your terrain and driving style. Low traction areas are best for the locked rear. If you stay on the gas when you jump, the stress induced on a locked rear at landing will eventually cause it to fail. I try to loosen the rear's hold by goosing the throttle prior to turns to help lesson the stress.

Joyner 800/1100 OPEN differential
QE5T2-1701601....$160

But this will not help you if you have the older 800 that uses the 650 tranny.

Glade

well whats considered old? mines an '06. how would i be able to tell?

dont know if this helps but I have an 06 roketa carb, it has the 800/650cc transmission and an open diff. I beat the living snot out of my 800cc at 50-60 mph over some really rough roads and constantly doing huge drifts, and I never broke an output shaft yet in two years. Then again I dont jump my buggy and I dont drive in thick sand.
If you get an open diff I dont think you would need to worry too much about breaking more output shafts. just my opinion

went to Joyner and they said in my 06' that their open differential that they sell will not work in my trans.