I've ran similar on a few leaf spring cars, mainly the old 'maro's and Nova's with leafs.... As long as the length is correct, binding shouldn't be an issue... Correct length of the bar should be the same as the distance from the rear axle centerline to the spring bolt center, measured at ride height. The work best if the bar is parallel with the ground at ride height, of if anything the front of the bar about 5 to 10 degrees up... Maybe a double set of holes on the housing end, drop the bar to the lower hole when it's time to go fast would help weight transfer considerably....