Re: Alignment or Steering Stabilizer or Both?
Check the tires, if they are worn funny this can cause the pull to one side.
As far as the jumping around, I would check/replace the tie rod ends and steering stabilizer are your biggest culprits. Worn tie rod ends can also cause the vehicle to pull to one side. Check the ball joints too, they could also cause a steering problem.
My Jeep: 2001 Grand Cherokee Limited, 245/65R17 Falken Rocky Mountain ATS, K&N drop in air filter, Bilstein HD's. De-badged, eagle-eye LED Tails & LED 3rd brake light, Addco front and rear sway bars, Superchips tuned & TM snip, interior 6k LED's, Gen3 ccfl projectors with Volt 6k HID lows, akebono brake upgrade with R1 Concepts premium rotors.