I just replaced my torsion bars and put a tough country leveling kit on my 2001 2500hd. they were twisted from the previous owner torqing them to the max. well my front end still wont come down. it is the same as it was before i changed the bars and keys. it is rubbing on the upper frame stops. i have the torsion bar screw only 1/4 inch pushing the key. any idea on what else is holding the front end up?