This is a Kit with our custom Short rear narrow suspension arms and most parts needed for traxxas Jato. 
Traxxas Jato short arms Drag racing
 
You obviously will need to do some tweeking since these are shorter than stock. You will need (4) of the Traxxas Bandit style camberlink scews # 3647 for the camberlinks if you dont have them we do sell them.
 
These arms fit right onto the Jato and use stock inner hinge pins. No grinding is needed for these arms to fit the Jato.
 
Kit includes he following parts:
RCRENEW V2.0 rear Jato short arms
Inner Diff cups
Steel CVD axles ( axles may vary depending on inventory )
Bandit Rear hubs with bearings
RCRENEW Jato rear camberlinks (non adjustable)
Rear hub pins
 
Color may vary slightly-Manufacturing Material plastic