Premature U-joint Failures...
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Cross-Country
Joined: Jul 2004
Posts: 57
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From: Spokane
Aha! Something new I can check - I have "used" my truck extensively, perhaps too "extensively" in the past and taken it down to the stops many times - maybe I have tweaked a spring by now. But if you can't tell by looking, how do you check for a spring problem??
Senior User
Joined: Feb 2004
Posts: 116
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From: Northwest
To check how much your springs "wrap" when you take off, just have someone watch how much your axle is twisting when you take off. They need to be able to see the area where the rear u-joint is. A little movement is normal, but alot is not. Don't take off fast when you check them, you will be able to tell from a gentle takeoff.
My rear springs were so weak that when I tried to gently take off by just easing the clutch out while idleing........the truck would start violently shaking....... almost like really bad clutch chatter. If you were watching from the side, you would have seen the pinion angle swinging up and down wildly......... and that is not too good for the u-joints.
Lift blocks can exaggerate the effect, especially with worn out springs.
My rear springs were so weak that when I tried to gently take off by just easing the clutch out while idleing........the truck would start violently shaking....... almost like really bad clutch chatter. If you were watching from the side, you would have seen the pinion angle swinging up and down wildly......... and that is not too good for the u-joints.
Lift blocks can exaggerate the effect, especially with worn out springs.
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