New stamped steel stock control arms do not include bushings or ball joints. Specify LH or RH. Works with bushings 916-34030 and 916-34036.
If you are purchasing this to fit onto a '78-'88 GM "metric" chassis for racing purposes and require a passenger side/right front control arm, you should be purchasing #91634300-R. If you require a driver side/left front control arm, you should be purchasing #91634300-L.
If you are purchasing this arm for use in a '68-'72 Nova or '67-'69 Camaro, you will need to purchase the left hand arm for the passenger/right side and the right side arm for the drivers/left side.