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Unread 08-20-2013, 03:10 PM   #1
Rp8095
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Join Date: Jul 2013
Location: Poplar, WI
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CJ5 gets awful squirrely going over 50

Hey guys,
I've been working on getting a fully rebuilt 1979 CJ5 back on the road. I put 33x12.5 Dunlop mud rovers 2.5 extended shackles and 1 inch body lift.

I didn't have the sway bar installed while test driving a little and it was scary. just installed it and i'm not overly impressed. if I go over 50 it still wants to start swerving all over the road. I didn't replace any of the rubber yet I assume that would help some but how much?. the steering damper is installed as well. any suggestions would be helpful thanks

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Unread 08-20-2013, 03:39 PM   #2
LeePrather
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1978 CJ5 
 
Join Date: Mar 2013
Location: Jefferson, Ga
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I've seen a lot of recommendations not to go over a 1" shackle lift because of those problems and I'm pretty sure that body lift isn't helping either...suspension lift would help or take off the body lift and go back to stock shackle...
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Unread 08-20-2013, 03:43 PM   #3
LeePrather
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1978 CJ5 
 
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Location: Jefferson, Ga
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Also, have you checked the alignment? Camber and castor? When it's lifted, those things change and have to be adjusted...
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Unread 08-20-2013, 04:00 PM   #4
Rp8095
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I wasn't sure how bad the Shackle lift effects everything but I had my suspicions. Thanks for the advice. I'll have the alignment checked as well. for starters I'll change the rubber, that's cheap at least.
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Unread 08-20-2013, 04:10 PM   #5
LeePrather
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1978 CJ5 
 
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Location: Jefferson, Ga
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That body lift isn't gonna ease your ride either...if you want a lift go to a suspension and remove the body lift...
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Unread 08-21-2013, 01:17 AM   #6
WSS
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1972 CJ5 
 
Join Date: Oct 2012
Location: Chino, Ca
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The shackle lift probably tilted your axle too far forward (castor?) and now you are out of the 6 degree spec. You can use a cheap magnetic angle finder from home depot or lowes to check it. Place the guage on the lower flat portion of the lower ball joint. If you are out of spec, you can get some taper shims in the correct degree to bring it back into the zone. Learned this trick here on JF, just can't remember who to thank.

I did a somewhat sucsessful toe-in alignment on mine. I raised both front tires onto jack stands about an inch off the ground and used a sharp scribe clamped in a large pair of vise grips and held it tightly to the floor up against the tire and spun it to get a even line all the way around the tire, did this on both tires and measured the distance between those lines both front and back. Then twisted drag link until it had an 1/8" difference between front and back, with the front being toed in. Really helped with the over correction problem

CJs are not famous for hi speed use LOL
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Unread 08-24-2013, 04:10 AM   #7
Rp8095
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Was. Thanks for mentioning the 6 degrees I didn't think of that either. That will be easy enough to figure out. Ill let you know how it goes. It might be a few weeks though.
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