How do you do an front end alignment on an 1989 Chevy Blazer?

Answer 1

First, in the rear, verify that the U-bolts haven't moved.

Then verify correct tire size and inflation pressure, and no shifted tire belts.

Then confirm correct ride height. If carrying cargo, unload it. If you have front torsion bars, turn the adjustment bolt (at rear of each torsion bar) until correct ride height is achieved.

Have someone start the engine and turn the steering wheel slowly just a bit left and right. Look for any abnormal movement in steering linkage or excessive play in steering gearbox. Correct as necessary.

With the truck on the ground, use a floor jack to jack up each lower control arm one at a time. If the control arm moves upwards at all before the spindle does, replace both the upper and lower ball joint on that side. Set the truck back on the ground.

Turn the cams at the upper control arms to set front camber and caster to specification.

Have someone sit in the truck with the engine running, foot firmly on brake and hold the steering wheel straight. Turn the tie rod adjusting sleeves to ajsust toe-in. If equipped with automatic transmission, greater accuracy may be achieved with transmission in Drive, but this can also be somewhat dangerous. A spring loaded bar placed between the front of the two front tires pushing them apart may also improve accuracy.