Available since LÖVE 0.8.0  
 This method is not supported in earlier versions. 
Sets a new damping ratio.
WheelJoint:setSpringDampingRatio( ratio )
number ratioNothing.
 
    © 2006–2016 LÖVE Development Team
Licensed under the GNU Free Documentation License, Version 1.3.
    https://love2d.org/wiki/WheelJoint:setSpringDampingRatio