So my rear drive shaft rattles quit loudly only when idling everything seems tight no play in the u joints and drives fine no rattle. It goes away if I push up on the drive shaft a bit. I always thought it was my exhaust pipe rattling so I ignored it till the other day when I decided to fix it. Is this normal or a symptom of failing components?
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Rear drive shaft rattle
- Thread starter ari
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pull the shaft and check it, I just replaced a shaft that appeared fine, when I pulled it to replace the output seal on the tcase, the ujoint was very tight and binding, I replaced the entire shaft. Those shafts are cheap for what they are.
Action
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there are like 4 bolts holding the rear joint in place, then pull it out.
Alo check heat shields on the exhaust for rattles.
Alo check heat shields on the exhaust for rattles.
BLK HMMWV
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Just curious if you have a fording exhaust on it.
Sometimes the wire mesh guard vibrates. ( Broken weld) It is kind of odd that yours stops making noise when you push on drive shaft however.
Sometimes the wire mesh guard vibrates. ( Broken weld) It is kind of odd that yours stops making noise when you push on drive shaft however.
fllaw1
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Just replaced mine the other day, they are all over ebay NOS pretty cheap.
ryanruck
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Just curious, does it sound like this?
https://www.youtube.com/watch?v=dv8x3AfwhOU
That's what mine does/did. Same t-case and shaft as you. It doesn't do it as bad anymore after alternating running some 2 stroke oil and Diesel Kleen every fill up through it for a while, which has smoothed out the idle considerably. I just add Diesel Kleen now.
Like you, everything seems tight and I don't have any vibration (aside from normal!) when driving. Only does it when warm and only in neutral. Put it in gear and it goes away. Pull down or push up on the shaft it goes away.
Since it's lessened considerably, I've just put it on the back burner since at some point down the road I'll be doing a driveline upgrade and other than being annoying it didn't seem to affect anything.
https://www.youtube.com/watch?v=dv8x3AfwhOU
That's what mine does/did. Same t-case and shaft as you. It doesn't do it as bad anymore after alternating running some 2 stroke oil and Diesel Kleen every fill up through it for a while, which has smoothed out the idle considerably. I just add Diesel Kleen now.
Like you, everything seems tight and I don't have any vibration (aside from normal!) when driving. Only does it when warm and only in neutral. Put it in gear and it goes away. Pull down or push up on the shaft it goes away.
Since it's lessened considerably, I've just put it on the back burner since at some point down the road I'll be doing a driveline upgrade and other than being annoying it didn't seem to affect anything.
Action
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the propshaft runs close to the metal shield on the side of the fuel tank...
maybe needle bearing worn in u-joints...
maybe needle bearing worn in u-joints...
mine does exactly the same thing sounds the same too. its been doing it for awhile before i found out it was the drive shaft i took it on a 160 mile trip last week and it dident get any worse stayed the same.