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Old 08-05-2013, 07:24 PM
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Any alignment Gurus on The Site?

I have a 96 C1500 short box with a 4/6 drop kit and 275-45R20 rollers all the way around. After doing the drop kit (dropped spindles and rear axle flip) I had the front end aligned. BUT, I never gave the specs any thought. After thinking it over I realized that the much larger contact patch of these fat tires is going to require much different alignment specs than stock. Back in the 80s I was actually state certified in front end alignment and repair, but have not kept up on the newer stuff as my career took a different path.

After giving this some thought, I came up with the specs of 2.0 degrees of positive caster, 1 degree negative camber, and about 1/8" toe-in. This should maximize the contact patch, I would think. If there are any gurus to correct my ideas please chime in!!

Thanx much!



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Old 08-05-2013, 07:59 PM
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2 degrees caster isnt enough . It would make the car a struggle to drive on a straight road.
Factory spec is best for that.
Factory on camber, leaning towards the positive side of the tolerance would be ideal.
Toe in would be the angle I would alter. Maybe a tad more toe in than stock as the larger wider tire will make a little more drag and load the suspension a little harder, causing more spread in the front to rear measurment at road speed.
Nice truck BTW.
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Old 08-05-2013, 10:38 PM
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Thanx much. She runs very well with a nicely massaged 388.

So, about 4* caster, -0.5* L camber and 0.0* R camber, 3/16" toe?



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