SPC adjustable upper control arms

for those wondering about the U shape....... HDK UCAs are purpose built in the U shape to clear a 3.5" od coil spring ....if the UCAs work for other applications, great, but are NOT marketed as a factory replacement.....I recommend the Qa1 arms for that. Additionally, HDK includes adjustable bump stops with all HDK chromoly upper arms and part of constantly attempting to improve our products, ALL HDK chromoly UCAs are now shipped with angled ball joint receivers for improved movement.

The fact that the HDK coil over only UCAs fill the void for someone wanting small ball joint, adjustable UCAs with poly or heim ends is a plus (to some)