rack and pinion
radial runout
reading
rear control (trailing) arm
rear thrust angle
rear trailing arm
rear-wheel drive
rebound
recirculating-ball type steering gear
recovery
relay (i.e. electrical)
remote reservoir
remove (as part of repair - R&R)
remove (to remove permanently)
repair (n)
repair (v)
replace
reservoir
retrain (e.g. initialize)
return port
ribbon wire/clock spring (spiral cable/cable reel)
ride (curb) height
rim
road surface
road test
road wander (n)
rotation
rough
rough pavement
rubber
runout