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Old 09-15-2012, 12:44 PM   #1
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Pinion Angle question

I installed the SYE a while back and just got my adjustable uppers on to correct the pinion. Well no more vibes at all which is nice but now my track bar is back to far. Im going to order the bracket to fix that but my question is I going out wheeling tomorrow. Is the track bar going to be a problem or should I adjust the pinion back down till I get the correct bracket. Also My springs are arced now. Will that be a problem when I start flexing the rear. Just thought I would ask. I was going to go out and bring it back down some but I wanted to ask first. Thanks

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Old 09-15-2012, 01:15 PM   #2
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I wouldn't go to be honest.... putting a lot of stress on the track bar mounts without proper alignment is not good at all and your asking for trouble. Also... check your clearance at the shock tube to the spring buckets on the axle.... unless you have shock relocators already.

If you adjust it back down... that might be the only way to get it to not bind at all.

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Old 09-15-2012, 01:24 PM   #3
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Thanks. Yea I dont want to break the track bar or put anything in a bind. The shocks are close also. I should have orded everything at once. I think I go out and lower it back down for now.
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Old 09-15-2012, 02:13 PM   #4
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It sound like because you said the spring were at a bad arch you my need to relocate your upper spring mounts as well so you don't bind up your springs. Just a thought had to do it to mine and it rides so much better now. :-)
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Old 09-15-2012, 02:18 PM   #5
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A correct pinion angle is far more important than any worry about the track bar rubbing the gas tank shield. Leave the pinion angle up where it should be or you could start seeing u-joint, bearing, or seal failures from vibrations.

Did you install upper and lower adjustable length control arms? If if so, you can adjust both to move the axle slightly forward and away from the gas tank and still maintain the correct pinion angle.

Shock clearance-wise, most shocks can be mounted upside-down in the rear so the strut is down instead of at the top. That will give the shocks enough clearance away from the lower spring bucket. I have run 4-5 different shocks upside down in the rear for that reason without problem. SOME shocks can't be run upside down but most don't cause any problem.
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Old 09-15-2012, 02:46 PM   #6
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Thanks for all the advise. I did lower it back down a bit. I didnt have my angle finder since Im at work so I dont know what the angle is. My shocks have about 1/4 inch clearance and my springs look a bit straighter. My trackbar is still rubbing the skid a bit. I didnt have any vibes just running down the street. I set up the trip for tomorrow so I would hate to cancel because of my bad planning so I hope this will work till I can order the correct bracket.
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Old 09-15-2012, 02:59 PM   #7
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Quote:
Originally Posted by Thomas302 View Post
Thanks for all the advise. I did lower it back down a bit. I didnt have my angle finder since Im at work so I dont know what the angle is.
The actual angle itself doesn't matter, it just needs to be the same angle as the driveshaft. At the most, it point 1-2 degrees under that of the driveshaft but not even 1 degree above it. I would not lower the pinion angle down from its correct position to help with the track bar, having the correct pinion angle is absolutely the #1 priority.
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Old 09-15-2012, 03:12 PM   #8
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Thanks Jerry. I will get my angle finder and put it back up where i had it. It was set 1 degree below. So you dont think that track bar will bind up on the trails tomorrow and give me troubles.
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Old 09-15-2012, 03:17 PM   #9
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I have no idea if your track bar will bind up but that is minor compared to what can happen to your rear CV driveshaft and its u-joints/bearings/seals with an improperly set pinion angle. I'd think about not wheeling until you have the track bar situation dialed in since it's not exactly rare for the track bar's driver's side mount to tear off the axle where it is welded.
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Old 09-15-2012, 03:36 PM   #10
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I do agree with Jerry on what's more important to be right.... the shaft. With that said... I ( me personally ) would NOT wheel it without the proper bracket for the track bar. There is way too much misalignment on the track bar without it... and I'm talking about bushing alignment, not interference with the any other parts. If you had an adjustable track bar already, that would not be an issue and interference would be the focus.

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4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
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