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1984 K5 leaning to the left

badmix

1/2 ton status
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Took quick measurements, leaning to the drivers side 1" in back a d 3/4" up front.

What is common culprit?
 
Air pressure in tires, a bad body mount, a bad shock/shocks bad or worn springs, bad shackles, bad rubber in the springs or shackles… list goes on and on
 
40 years of wear on a GM product that may not have been level in the first place.

I would check spring bushings and body mounts first. Worn out springs/shocks, bent stuff next.
 
Ok thanks.I looked at body mounts they look good. Old rough country springs could be suspect. Shocks are bolstering 5150s seem fine
 
Sounds like you need a fat chick!

It's pretty normal for a leaf spring to get tired. Sometimes one receives some weird abuse and doesn't fully recover. I've seen the front end leaning to one side with perfect brand-new front springs and the problem was a worn spring in the back.
 
When I put my brand new 2.5” Rough Country lift on my truck it leaned to the right, I put 4” zone leafs on it and it was fine.

On my Dodge the core support bushing was blown out, and it leaned bad, swapped that out and all was good.
 
My truck had a tweaked sway bar when I first got it. Caused the truck to have a bad lean in the front. Removed the sway bar and all good. Never looked back.
 
Try measuring from the frame to the axle vs measuring to a wheel opening or body line. There can be a difference that's not from the springs.

There could be a bound-up leaf spring bushing or two that causes the lean. Loosen the spring eye bolts and shackle bolts with the tires on the ground. Bounce the suspension to let it settle and then tighten the spring eye and shackle bolts. Take a new measurement.
 
nitrogen charged shocks can add quite a bit of helping lift to the springs on an unloaded truck... if that nitrogen pressure bleeds out, truck goes a leaning! have seen this on a couple of Toyotas running Bilstein's

my tundra sat weird when one of the rear KYBs blew out and started leaking. surprised how much that corner of the truck relaxed. I would have thought that there was more wrong than just a shock... nope! new shocks fixed it.
 
I measured from top of rear leaf perch to bottom of frame ,,I get 1/2 difference between the drivers side and pass side
 
I suspect leaf springs. I've been getting a weird popping sound when making turns and its not isolated to one corner
 
I just had the popping noise on my Suburban and it was worn out poly bushings in the Rancho leafs on the front end. New bushings from ORD and no more noise.
 
Ok I've got poly bushings, rough country 2" springs and 5150 bilstein shocks and ORD grease bolts. But the whole system is 15 years old or more
 
I suspect leaf springs. I've been getting a weird popping sound when making turns and its not isolated to one corner
The springs moving against one another are a common culprit too (not really a problem, but can make noise), you can spray them with something like WD40 and see if the noise goes away for a while.
 
I suspect leaf springs. I've been getting a weird popping sound when making turns and its not isolated to one corner
Ive found my front U-bolts have loosened up a few times and caused a pop as things shift a little... any chance you might have a center pin/center bolt that has sheared? if so, the axle could be moving a bit... contributing to the sag, and funky lean?
 

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