What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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89Suburban

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Now that my rear springs are starting to settle in, I am definitely have something bottoming out in the l/r. I'm guessing the sway bar or a shock. Hopefully not the panhard bar.

Only happens on this 1 right hand turn I make that has a man hole you got to drive over.
 

iamdub

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it is amazing how ls main and rod bearings are almost always mint, cam bearings, complete junk.

And the cam bearings get the oil first and are what primarily dictate the oil pressure. With the way the four corner cylinders have a few thousandths difference in PTV clearance, I think it's a geometry thing.


I tell you, years ago I found a picture of some cam bearings from a zero mile crate motor, guy was swapping in a cam before putting it on the hot rod and the bearings had copper showing.

the drag race guys that play with junk yard builds just look the other way haha. if you don't see it, you don't know it's bad and it only has to run for a 1/4 mile haha.

Yup! People that do cam swaps and post pics of copper showing on the lower half of the forward cam bearings and being scared... I'm like "Send it. That Babbitt wore off when they drove that vehicle off the assembly line".
 

iamdub

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Now that my rear springs are starting to settle in, I am definitely have something bottoming out in the l/r. I'm guessing the sway bar or a shock. Hopefully not the panhard bar.

Only happens on this 1 right hand turn I make that has a man hole you got to drive over.

Top of panhard bar mount on the axle hitting the cross member above it?
 

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