1990 Jeep WagoneerFACTORY OEM SERVICE PROCEDURE

Caster Adjustment

Check caster angle. See ALIGNMENT SPECIFICATIONSΒ . If caster is not to specifications, adjustment can be made by adding or removing shims at rear of lower control arms on Cherokee, Comanche and Wagoneer models and between front axle pads and spring brackets on Grand Wagoneer and Wrangler models. See Fig 1 and Fig 2.

Fig 1: Locating Lower Control Arm (Cherokee, Comanche & Wagoneer)
G90J04494Courtesy of CHRYSLER MOTORS.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.