My daily driver, 1991 Extended cab 2 wheel drive truck is in dire need of traction. I rebuilt the engine, modified the the TBI a little, and put in a Powertrax to get grip with both rear tires. Now I'm having problems with axlehop. Do slapper bars really work? Is there a better solution than having those ugly bars mounted on the axle? Anyone have any experience or opinions about what I can do to stop axelwrap?