This is the CRC Long Dual-Mount Upper Arm Set. CRC's Long Dual-Mount Upper Arm replaces not only the long ball setup, but it will work in place of the standard short arm as well thanks to its two sets of hinge pin holes. Now, you no longer need to carry two sets of parts to try a setup change. Just move the upper arm mount and install the hinge pin in the other hole...trick.
Note: Works on all Pro-strut front-ends. (requires addition of part# 3277 in order to run the long arm setup)