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Suspension 3rd Gen Dodge Ram Suspension Problems and Questions


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  #1  
Old 08-29-2009, 12:31 AM
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SA1911A SA1911A is offline
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Question '04 1500 QC Vibration

I put a Ground Force 1.5"/4.3" lowering kit on it this week now have a vibration in back end (you can see bed shake in mirror at low speed) starts about 20 and is gone after 50 miles an hour any ideas on why? Open to all input. Did think tire balance so had tires rebalanced no help, rotated tires thinking maybe a rim that was strike two.
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Old 08-29-2009, 09:23 AM
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how about a ujoint or driveshaft angle problem? these trucks are bad for universal joint failure. I work at a Dodge dealership and keep a ton of them on hand.
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Old 08-29-2009, 10:46 AM
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Thanks for the input I’ll check both of those today, is there a degree angle for drive shaft or is it just an eyeball alignment when sitting on ground.
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Old 08-31-2009, 07:27 PM
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Used shims on axle and plate on trans tail shaft that came with kit for proper pinion/driveshaft alignment, ( I thought) after playing around with it this weekend I found the trans needed to be raised just about 1/32 of an inch added a homemade shim to raise tail shaft. Like magic vibration all gone. I am going to play with it some more to see if I can get same result by changing shims around/out and spacer plate at trans.
FYI everything I found told me angle of pinion is between 3 and 6 degrees
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Old 09-01-2009, 06:45 PM
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Quote:
Originally Posted by SA1911A View Post
Used shims on axle and plate on trans tail shaft that came with kit for proper pinion/driveshaft alignment, ( I thought) after playing around with it this weekend I found the trans needed to be raised just about 1/32 of an inch added a homemade shim to raise tail shaft. Like magic vibration all gone. I am going to play with it some more to see if I can get same result by changing shims around/out and spacer plate at trans.
FYI everything I found told me angle of pinion is between 3 and 6 degrees
I was corrected today on pinion angle it is 1 to 3 degrees for a lowered truck so they say seeing as mine has stopped vibrating I'm going to get a tool to read the angle for myself. Just didn’t want to mislead anyone.
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