I installed ssm lift bars on wvcat years ago. They made a dramatic difference in getting traction and at the time I was running a 4 sp. I would recommend them. The only obstacle is you will have to remove the insulators from the springs and then deal with a hole that is bigger than your spring center bolt. I made bushings and used longer spring bolts to hold them in place. Your u-bolts will also be too long.
John
wvcat