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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | I did some online searching for caster guages and found them new as cheap as $100 and $250 will buy a fancy digital one. Basically all of them are really Camber guages that calculate Caster from Camber near as I can tell.
I also found a couple of DIY Camber guage ideas but simply putting my angle finder on the rotor is probably as good as any of them.
The Porsche 911 forum gave me this:
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To calculate caster, turn the wheel 20' right. Measure camber. Turn
the wheel 20' left. Measure camber.
Caster = ( CL - CR ) * 1.5
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That seems consistent with the descriptions of the tools you can buy, but I don't know if the math is really correct. Does that seem consistent with your approach?
1.5 times the change in Camber over a 40 degree arc equals Caster. I was thinking about trying to come up with the formula by going back 35+ years to my high school math classes. If I can simply trust that formula its a lot easier...
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
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