drive line clunk?
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Freshman User
Joined: Dec 2011
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drive line clunk?
So recently after a long trip I started getting a clunk or pop from the rear of the truck. Mainly when first starting off and stepping on it in forward or reverse but seems worse in reverse. If I take it easy everything is fine. Truck has a six inch lift and 37 inch tires. It is an 01 and iv always had the shimmy from 10 to 15 miles an hour after the lift not a big deal learned to live with it. Has 110,000 miles on it. So I took it to a local shop cuz i thought it was rearend. They checked said the rear is fine and its the driveshaft-to much play at the splines. So I get under it put it in nuetral with parking brake on and there is some play but doesnt seem to be enough to cause the noise already tried packing it with greese still there. What now where do i look if thats not it or is a little play by hand enough to cause that much noise in gear
Elder User
Joined: Apr 2010
Posts: 579
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From: Chiefland, Fl
Good question, the fix is to usually lube the driveshaft with Ford's blue lubricant. Mine has had it in the past and there is actually a grease zerk on mine. THere really shouldn't be any play in the driveshaft, any starting or stopping will make it happen due to the torque. Check your ujoints too, a lift is certainly not easy on them.
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Freshman User
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I just re greased the drive shaft no change. It sure sounds like drivetrain to me. I Guess I will have to take it to the dealer. I am sure that wont be cheap. U joints seem good to me too. I cant see it being the drive shaft.
Cargo Master
Joined: Apr 2013
Posts: 3,087
Likes: 25
From: Central Florida
My van does this exactly like you described. Put it in drive and accelerate as normal, and just 1-2 seconds of normal, light acceleration it clunks back there.
It boggles my mind because it is 1-2 seconds after the gear is fully engaged and the torque has propelled the vehicle.
I have not noticed it in reverse, but of course I spend very very little time in reverse in a E350 that has no rear windows.
It boggles my mind because it is 1-2 seconds after the gear is fully engaged and the torque has propelled the vehicle.
I have not noticed it in reverse, but of course I spend very very little time in reverse in a E350 that has no rear windows.
Tuned
Joined: Jun 2009
Posts: 287
Likes: 1
When my fronts were rattling, they felt tight on the "shake test"
If it werent too much hassle, maybe just pull it off long enough to see if it helps. 6 bolts/nuts i believe
With the lift, i'd still lean toward driveshaft, due to the increased angles, maybe the carrier if they didnt shim it
If it werent too much hassle, maybe just pull it off long enough to see if it helps. 6 bolts/nuts i believe
With the lift, i'd still lean toward driveshaft, due to the increased angles, maybe the carrier if they didnt shim it
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Mountain Pass
Joined: Aug 2010
Posts: 198
Likes: 49
From: NJ
Had the same problem, turned out to be the chain in the transfer case was stretched from years of wear and tear. 37" tires would surely put a lot of stress on that chain. Easy to check... remove the driveshaft and check the amount of slack by moving the front yoke back and forth. Should be about 1/2" of play, any more and the chain has stretched. Easy to replace, too. About 2 hours from start to finish.
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Freshman User
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Had the same problem, turned out to be the chain in the transfer case was stretched from years of wear and tear. 37" tires would surely put a lot of stress on that chain. Easy to check... remove the driveshaft and check the amount of slack by moving the front yoke back and forth. Should be about 1/2" of play, any more and the chain has stretched. Easy to replace, too. About 2 hours form start to finish.
something like this seems much more likely to me. I have an appointment at 4 wheel parts next friday for an inspection. Hopefully they can find it. I may pull the drive shaft and check before then
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Freshman User
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Take ur driveshaft out check u joints and splines and start tightening stuff up