switched to a version that didn't have the torque arm mount, as I went with a body mounted torque arm. Fitment was very nice, just didn't work with my setup of a moser 9 inch and magnum trans. The torque arm was hitting the transmission. Will work Great on a t56 magnum F, or a stock t56 lsx or sbc versions. Unit is brand new, I'm asking $200 and that includes the ride. These are $250 new +shipping.