87 Jeep wrangler 5" coil spring suspension, 35 x 17 tires. When going over 35 and hit bumps or tire wear grooves in road (especially highway) the Jeep wants to drive right off the road! The front end and bushings and tie rods, trac bar, etc are all new and tight. The steering jerks from left to right, always adjusting to keep on road, not a comfortable feeling. Need help !