My 95 Blazer is behaving a bit strange. I'm used to having cars where the steering wheel centers itself back when I let it go at higher speeds. The Blazer isn't completely doing that. It's allmost as if there is nearly no caster at all but I searched and can't find any screw to adjust it. Is the caster angle fixed by factory or something stupid like that?

 

2WD or 4WD? Both are fully adjustable, but use different ways to adjust it.

 

It's a 4WD Blazer.

 

They don`t exactly have screws on any blazer for caster adjustment.You will need to add shims in order to get a correct caster setting.I had put new tires and a new front end alignment on my ride about 3 months ago.The caster on the drivers side was off 6 degrees.The driver side tire was leaning out to the left on a 45 degree.My steering wheel would pull to the right when I let the steering go.The caster keeps the wheels vertical.while the toe keeps the tires straight in line with the rear tires.The caster adjustment is located on the top of the upper a arm.You really can`t do any adjustment until you hook it up to a alignment machine.After I had new tires and a front end alignment done..It now drives like it suppose to.The wheel doesn`t pull at all,it rides like a new truck,plus I get better gas mileage.

 

4WD does NOT use shims for camber and caster adjustments. Camber is the inboard or outboard angle from lower to upper ball joint, (tire leaning in or out). Caster is the forward or rearward angle from the lower to the upper ball joint. Camber and caster can both cause a pull or drift. Among other things, caster affects steering wheel returnability after a turn.


2WD uses 2 shim packs on each upper control arm for adjusting camber and caster. 4WD uses 2 cams on each upper control arm. To increase returnability, caster must be increased, (the upper ball joint must be moved rearward). The forward shim pack or cam increases or decreases camber and caster, while the rearward shim pack or cam does opposites, ie, adds camber and subtracts caster, or vice versa.

 

If i left a shim out and cannot remember where it goes will the front end tech be able to fix it for no extra cost

 

Old thread. No guarantees tho