Shaking in my Suburban

CHEVROLET SUBURBAN
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DCWOLF
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I just bought a 1994 Chevy Suburban with a 7.4l 454 4wd. It shook a lot at higer speeds, then smoothed out a litte above 70. I just had my tires balanced and I just replaced my rear shocks because I noticed the rear wheels bouncing a lot. I know the previous owner towed an rv with it mostly. I am trying to figure out what could cause the vibration. After replacing the rear shocks, the bouncing on the back tires has eased only a little. Could it be the springs need replacing? Do springs even cause wheel vibration and hop? Any assistance would be appreciated, before I go spending a ton of money I don't have.
Nov 7, 2007 at 7:44 PM
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MIKE H R
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Check the front steering stabilizer bar. It looks like a shock and keeps the front from vibrating, especially on 4 wheel drive
Nov 8, 2007 at 9:32 PM
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DVICTORIA
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check your universal joints. If it's excessive in 4wd, then those would be the focus of your attention.
Aug 26, 2010 at 3:50 PM
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MIKE H R
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If you have a chance raise the rear of the vehicle and check the rear spring bushings and connections. With the rear end up off the ground get a friend and use a long pry bar or something that you can put under tire to move it up and down, that way you can check for anything that is worn . How is the truck tracking. What I mean is the truck driving straight. Have seen a missing bushing and when the gas was stepped on the rear would shift a little to one side or another .
Sep 23, 2010 at 10:10 AM