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Thread: Spirit R/T rear axle tight on drivers side

  1. #1
    Garrett booster
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    Spirit R/T rear axle tight on drivers side

    Hello,

    I am looking for help on solving my offset rear axle on the Spirit R/T. I picked up some new 225/50/16's for the car and now I am really rubbing on cloverleafs. It had 205/55/16 on the rear previously. I do notice that the rear is offset. I have seen talk of an adjustable panhard/track bar but I am not sure what I am looking for there. Just take an eye to eye measurement and replace with tube and heim joints? Is there a readily available part that would resolve like for a neon? Thoughts?



    Thanks,
    Ben

  2. #2
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Spirit R/T rear axle tight on drivers side

    I'm not sure anyone is currently making adjustable bars. I need to make one for my lancer since it is lowered in the rear and that throws the trailing arm to the right of the car. I presume your car is lowered?

    You've got the right idea. It's just a tube with heim joints on the end. You should be able to make one pretty easily.

  3. #3
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    Re: Spirit R/T rear axle tight on drivers side

    My car has stock spring to the best of my knowledge. I suppose a fella could chop the bar and take out the offset needed and weld it back up.
    Last edited by dr_amx; 07-30-2020 at 09:34 AM.

  4. #4
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    Re: Spirit R/T rear axle tight on drivers side

    Well, I'm sure they have sagged over the years, and perhaps you're able to generate the cornering force to compress the weaker springs. The next time I have CSX 42 out, I'll try to measure the adjustable bar that's under it.

  5. #5
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    Re: Spirit R/T rear axle tight on drivers side

    Do you (or anyone) know if there are any springs available still that will work? I have a full set of KYB struts/shocks I will be installing. Not good stuff I know but better then the 140k stuff that it has now. I would like to play a little SCCA at some point. I have used the search function but I am not finding much.

  6. #6
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    Re: Spirit R/T rear axle tight on drivers side

    Does anyone have a picture or specs on what the CSRacing panhard bar looked like? It appears that I will need to make a bracket for the body side and then decide how to change the interface of the track bar and panhard bar on the axle side. Currently they cup each other with the panhard going around the track bar. Maybe converting both to heim joints would solve that problem.

  7. #7

    Re: Spirit R/T rear axle tight on drivers side

    Might check the panhard bar, it should be straight. A few years ago I noticed the one on my Spirit R/T had a curve to it, not sure why. Guessing if I let it go it would have quickly gotten worse.

    Here is a link to a parts list to build your own

    http://www.turbo-mopar.com/forums/sh...le+panhard+bar

  8. #8
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    Re: Spirit R/T rear axle tight on drivers side

    Thanks, that is good info. I think I am going to go with something approximating the poly bushing solution "track bar made with 7/8" DOM, 0.156 wall steel tubing." If I order the correct left hand tap I can make the threaded bungs for welding in to the ends. I believe this is considered sprung weight and it should be OK in steel. Also sounds like I should box that mount some.

  9. #9
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    Re: Spirit R/T rear axle tight on drivers side

    Quote Originally Posted by dr_amx View Post
    Thanks, that is good info. I think I am going to go with something approximating the poly bushing solution "track bar made with 7/8" DOM, 0.156 wall steel tubing." If I order the correct left hand tap I can make the threaded bungs for welding in to the ends. I believe this is considered sprung weight and it should be OK in steel. Also sounds like I should box that mount some.
    Since it bolts to the body and the trailing arm, it's probably about 50/50 sprung vs. unsprung weight. It's so low, I wouldn't worry about it. The link posted above is pretty much what the CS Racing bar looks like for the most part.

  10. #10
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    Re: Spirit R/T rear axle tight on drivers side

    So I have been thinking about this. If my track bar was bent then the axle would be justified to the drivers side. It must be the trackbar mount or the static panhard bar that is bent for it to move to the passenger side.

    Pics of rear suspension
    https://photos.app.goo.gl/HVxajsASFeC6fibNA

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    Re: Spirit R/T rear axle tight on drivers side

    It looks like it might have been massaged to clear that exhaust? I don't believe that welded nut and bolt are supposed to be there. You're right that if it's pushed to the driver's side the panhard bar must be shorter than it should be.

  12. #12
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    Re: Spirit R/T rear axle tight on drivers side

    I installed the exhaust and I did no massaging. The bolt if from a exhaust previous to my ownership.

    I wonder what to do then. Maybe I should try partially boxing the panhard and mount to see if that corrects the issue.

  13. #13
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    Re: Spirit R/T rear axle tight on drivers side

    Quote Originally Posted by dr_amx View Post
    I installed the exhaust and I did no massaging. The bolt if from a exhaust previous to my ownership.

    I wonder what to do then. Maybe I should try partially boxing the panhard and mount to see if that corrects the issue.
    I would make an adjustable bar and go from there. I'm sure there was quite a variation in how the trailing arms were in the individual cars from the factory when tolerances were stacked. You certainly aren't the first person to experience scrubbing with a 225 width tire on tight turns with a relatively stock suspension.

  14. #14
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    Re: Spirit R/T rear axle tight on drivers side

    This is still a good parts list at speedway for anyone else wondering. I will also buy a similar setup for the panhard bar. Thanks for all your help!

    Part number list:
    910355-42.....Aluminum Swedged Tie Rod 42" long
    1170810........5/8" RH thread 1/2" diameter hole heim joint
    1170810L......5/8" LH thread 1/2" diameter hole heim joint
    3159603........5/8" RH aluminum jam nut
    3159604........5/8" LH aluminum jam nut
    91001503......Heim joint seals 6pack

  15. #15
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    Re: Spirit R/T rear axle tight on drivers side

    The site says that 1.5" should be subtracted for each hiem joint. Since the current center to center on the track bar is 46" then a 43" bar would be correct with room for adjustment. The current panhard is ~17.5" center to center. I will order a 16" bar for that as 14.5" is not an option. Hopefully I can face it off shorter in the lathe and make it work.
    Last edited by dr_amx; 07-31-2020 at 01:29 PM.

  16. #16
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    Re: Spirit R/T rear axle tight on drivers side

    In for PN information

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