mudweiser i looked at rubberdowns kit and i think its junk. go with highlifter its built alot stronger. I will tell you that i did have a install problem where the front lift block bolts to the a-arm. It did not line up. the bolt hole was of just a small amount. all you have to do is run a drill through and it will line up. I was pissed at first but when i got done i was ok with it. the worst thing that could happen is that i would have to replace a-arm. you wont have to replace a-arm i just said that to myself and went for it. the kit installs quickly i dident even have to remove wheels. all you get in the rubberdown kit is a chunck of steel with three holes drilled in it. not vary strong. highlifter gives you a lift block. if you go to members rides and look at mdevans pics you can see the lift block.