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Best Front End Alignment Tool for the Home Mechanic?

6.1K views 9 replies 8 participants last post by  55 Tony  
#1 ·
When it comes to my vehicles, I do all of the maintenance and service on them….except alignments. I’ve done simple toe adjustments before on vehicles with solid front axles by setting up lines on each side and lots of measuring, but when it comes to vehicles with top and bottom a-arms where you are adjusting toe/camber/caster all at the same time, I just don’t have the equipment to do it right.

I’m at the point where I would like to invest some money in some good equipment that will let me set camber and caster pretty easily. Setting toe is the easy part.

Most of the jigs/tools I’ve seen out there only fit up to an 18” wheel….but my truck has 20” wheels on it, my wife’s Touareg has 19” wheels….so whatever I get, it needs to fit those wheel sizes.

Maybe something like this?

Image
 
#5 ·
For a disc brake car I have heard people talk about sticking a magnetic angle finder on the rotor. That would work reasonably well for camber but castor would take a little more thought.

There are bunches of inexpensive bubble tools on Ebay. I would love to watch a really good video on using one.

John
 
#6 ·
Without proper turntables under the tires that setup will have to come off and on again after every adjustment so you can roll the car back and forth a few times. I used a cheap (around $19) tool to do the castor, a plain level cut to the length of the wheel to do the camber, and I am getting or making toe plates ... for the toe.
 
#9 ·
Yep. I went to Lowe's and bought 4 sheets of acrylic plastic 1/8” thick 8 x 8 inches square. Put grease or Vaseline between two each and roll the car onto them. I made some ramps from stacked 2x12s so I can get under the car for adjustment and left the ramps long enough that I can still roll it onto the plastic turn plates.

I cut a level too to fit against the wheel and a digital angle finder for camber. Caster uses the same tool but needs two people. Turn wheels, not steering wheel it's more like 3/4 turn, 20 degrees, zero camber/angle gauge, turn opposite direction past straight the same amount measure on gauge plus a little math equals caster (I can't remember the math equation right now). Repeat on both sides to get castor on each side.

For toe I bought two identical brand tape measures and compared the reading in the store. Plus a couple of pieces of aluminum angle. Got the aluminum angle blocked up high enough to get over the tire bulge and cut slots to pass the tape through.

I've got less than $150 in everything including the 2x12 ramps and I verified it with the computer alignment machine at work one day it was really close. I built my own stuff because it is hard to put my lowered Fairlane on the machine at work, the hunter machine needs to clamp to the tire tread to hold the sensors, and with the Fairlanes built in rear fender skirts and the front tires filling up the wheel well opening it interferes with the sensors clamps.

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