Ride Height

Compute the difference between left and right ride heights as shown in the previous illustration. If the difference exceeds 3-9mm (1/8-3/8 inch) and is less than 19mm (3/4 inch), measured at the wheel house opening to ground, add one shim to the side of the vehicle that is low. The shim is to be placed under the lower spring seat (5A307); service shim (part number 3891 17-S2) can be used on 4x2 and 4x4 models without a front stabilizer bar. If there is a computed side-to-side difference of 19mm (3/4 inch) or more in the left/right wheel house openings, swap springs from side-to-side. If the lean condition follows the spring (lean now on other side of the vehicle), replace both springs with new ones.






NOTE: Changing front ride height by adding the service shim also affects caster angles. Adding the 4.5mm thick shim (Part #3891 17-S2 or equivalent) may reduce caster by up to 0.40 degrees on the side the shim is