When I removed my torsion bars I used a pipe wrench. It needs to be a decent size pipe wrench, like maybe a 14" so you obviously need plenty of room under the car as far as height, because the handle of the wrench will hang almost straight down. You will need enough adjustment on the wrench to be able to push the handle toward the rear of the car and bind the wrench on the bar. The wrench has to be held there while you are pushing, jiggling and hammering aft on the wrench. The advantage is the pipe wrench is a bigger heavier piece of equipment and can take alot of abuse, and is alot less likely to move and slide like the visegrips. Also while hammering, jiggling and pushing on the handle of the wrench you are forcing the teeth into the bar causing it to get more bite. The marks can be polished out before reinstall or if your equipped you can knurl the bar there for next removal. Make sure and put plenty of grease or anti-seize on ends before reinstall and this will ease removal next time.