[PGSigns]

For more traction here what may help. Raise the front of the trailing arms and shim the pinion back to about a 1/2 degree down. This will raise the instant center and ad bite to the initial hit. Get the tire from your chart with the most side wall. Reduce the tire pressure to let the side walls work. Get a set of double adjustable shocks. Work with the settings to allow a harder hit with the extension setting. That allows the shock to extend easier on the hit and that will help drive tire down. then tune the compression to control the rotation to help keep it hooked. The drag radials are not designed to hook on a slick surface. Radial prep will rip your shoes off. Radial cars dead hook the tire.
Jimmy