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Unread 11-23-2007, 11:52 AM   #1
79cj7reny
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1979 CJ7 
 
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Checking caster angle...

I checked my caster angle on top of the upper ball joint stud. I used a protractor that slides onto a steel ruler and has a bubble level on it. I put the ruler on the castle nut and rotated the protractor until the bubble showed level.
Is that the right way to get an accurate reading? I have a 3" lift and it shows the caster at 2*, which seems to make sense. Before I did the lift it was at 4*
and still wandered a little, so I was thinking of using 4* shims, which would give me 6* of + caster. Any thought on this? Thanks

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Unread 11-23-2007, 12:14 PM   #2
spk454
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factory i believe is 4 degrees, might want to just use the 2 degree shims
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Unread 11-23-2007, 02:50 PM   #3
79cj7reny
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Before I put the lift on it was at 4* but still wandered. All steering components were new so I figured 4* wasn't quite enough. Now that I lifted it, thought maybe 6* would be better.
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Unread 11-23-2007, 04:57 PM   #4
BESRK
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4* shims should be okay. Make sure to use steel shims up front and not aluminum. The aluminum shims have been known to crack across at the centering pin hole and then spit out from between the spring and perch... not good on a steering axle.
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Unread 11-24-2007, 04:32 PM   #5
evil-ant
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If you have 4* and still wander check everything else, steering box,ball joints tire pressure, alignment, loose spring bushings, drag link angle, ect,ect.... If the castor is set to 4 deg. then it's correct. Something else is causing it.
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Unread 11-24-2007, 08:14 PM   #6
79cj7reny
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Everything is new. Drag link is perfectly parallel with the tie rod, new springs/ bushings, reman. steering box, all steering box mounting bolts are tight, no cracks in the frame around steering box bolts. I'm having the alignment checked this week. I'll figure it out eventually, I'm just a little slow (trying to graduate from Remedial Jeep 101 )
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