Caster vs pinion angle
08-10-2016, 09:32 AM
#11
JK Super Freak
Also check your toe. Can do this with a tape measure should probably be around 1/8" toe in for your set up to drive well.
Last edited by Biginboca; 08-10-2016 at 09:35 AM.
08-10-2016, 09:45 AM
#12
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Toe 1/8" in and tires are at 28psi. I took another measurement at the pinion and got 2* up. So caster should be around 4*. I'm wondering now if it's the axle being off center.
08-10-2016, 04:14 PM
#13
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What angle do you have on the uni joint? I just installed my new double Cardin drive shaft and was getting really bad vibes so adjusted my caster down to about 2.5* which left me with 5* of angle on the uni joint, the vibes have settled a bit but still there. I'm at about 3.5 maybe 4* of lift. Maybe my shaft is out of balance?
08-11-2016, 08:19 AM
#15
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What angle do you have on the uni joint? I just installed my new double Cardin drive shaft and was getting really bad vibes so adjusted my caster down to about 2.5* which left me with 5* of angle on the uni joint, the vibes have settled a bit but still there. I'm at about 3.5 maybe 4* of lift. Maybe my shaft is out of balance?
08-13-2016, 04:59 AM
#16
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How do you measure the pinion angle and what's a ballpark figure of what is ok?
I keep considering extended my arms to increase my caster some but just not sure about the other side impact other than finding out if things don't feel right.
I keep considering extended my arms to increase my caster some but just not sure about the other side impact other than finding out if things don't feel right.
08-13-2016, 05:01 AM
#17
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I put the axle right up against the pinion flange. You want between 1 and 2° pinion which = 4-5° caster.
08-15-2016, 11:37 AM
#18
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Thought I'd update post alignment. Both front and rear axles are now with 1/8" of center (was 3/4" off). Increases pinion from 2* to 5* caster is 1*. Immediately took the jeep on the interstate to 75mph for 10-15miles. No more vibration jeep tracks dead straight no wonder what so ever.
08-15-2016, 02:25 PM
#20
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Thought I'd update post alignment. Both front and rear axles are now with 1/8" of center (was 3/4" off). Increases pinion from 2* to 5* caster is 1*. Immediately took the jeep on the interstate to 75mph for 10-15miles. No more vibration jeep tracks dead straight no wonder what so ever.