PSR's Mazda BT-50 and PX Ranger upper arm/UCA is a no modification super tough solution for lifts 2" to 5". Designed in-house allowing a huge range of camber adjustment our arm also features a massive increase in clearance to the upper strut tower. When lifting the suspension from factory height the OE upper arm comes into contact with the strut tower and limits down travel, without a diff drop this is a feature that potentially saves damage to your CV joints and one we recommend but coupled with our diff drop system our control arm allows the down travel to improve your off road traction and flex! Our control arm is made from super tough seamless tube and has heavy duty rubber inner bushes, all items including the ball joints are replaceable. Painted Black to blend into the chassis for a discrete look.