Klunking when loaded
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Junior User
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From: Front Range Colorado
Klunking when loaded
Hello all,
So the other night I was hauling about a ton of rock and when
I would come to a crack (bump) in the road the truck would make the
most awfull klunk you ever heard. Right away I thought it had
something to do with the ball joint repacement I just had. When
I got home I looked it over again and discovered I was about 1/4
inch away from the overload springs. Deducting that when I hit
a bump then It would hit overloads and therefor the Klunk. Shortime
later hauling somewhat more rock I looked at overloads and this time
they were well engaged I still had the Klunk and it is real irritating to
drive. I think it's the rear axle but not positive sounds like something
real loose. Any Ideas? Thanks in advance Randy
So the other night I was hauling about a ton of rock and when
I would come to a crack (bump) in the road the truck would make the
most awfull klunk you ever heard. Right away I thought it had
something to do with the ball joint repacement I just had. When
I got home I looked it over again and discovered I was about 1/4
inch away from the overload springs. Deducting that when I hit
a bump then It would hit overloads and therefor the Klunk. Shortime
later hauling somewhat more rock I looked at overloads and this time
they were well engaged I still had the Klunk and it is real irritating to
drive. I think it's the rear axle but not positive sounds like something
real loose. Any Ideas? Thanks in advance Randy
Logistics Pro
Joined: Jun 2005
Posts: 4,243
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From: AZ
Sounds like the driveline slip joint, IIRC...
- Fill the driveshaft slip yoke boot with approximately 10 grams (0.36 ounce) of grease.
- Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
It could also be your shocks bottoming out, the axle blocks hitting, or a B&W turnover ball installed in the wrong location (Don't ask how I know about the last one). Have you crawled under the truck to see if it looks like anything has been rubbing and left a clean spot in the dirt?
Senior User
Joined: Dec 2005
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Sounds like something in the suspension. Check your shocks, u-bolts and springs Might even find a broken leaf. I did when I replaced my shocks. Then when replaceing the springs I found the other side broken too.
I would also not rule out a creek in the bed or tailgate.
I would also not rule out a creek in the bed or tailgate.
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Junior User
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From: Front Range Colorado
[QUOTE=nlemerise]Sounds like the driveline slip joint, IIRC...
Question! looked for zerk and there is not one. How do you grease?
The boot is sealed. Sometimes I long for the good old
days of grease Zerks as a standard item, sorry for my stupidity. Randy
- Fill the driveshaft slip yoke boot with approximately 10 grams (0.36 ounce) of grease.
- Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
Question! looked for zerk and there is not one. How do you grease?
The boot is sealed. Sometimes I long for the good old
days of grease Zerks as a standard item, sorry for my stupidity. Randy
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Junior User
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From: Front Range Colorado
Originally Posted by F350-6
It could also be your shocks bottoming out, the axle blocks hitting, or a B&W turnover ball installed in the wrong location (Don't ask how I know about the last one). Have you crawled under the truck to see if it looks like anything has been rubbing and left a clean spot in the dirt?
F350-6
Thanks for Ideas, I crawled under truck and only thing rubbing is overload
springs on bracket of frame, that would happen with load. Would shocks
bottom out before axle blocks hit? Can I ask is a B&W tunover ball for
pulling trailer(ball&hitch)? Thanks Randy
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Junior User
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From: Front Range Colorado
Originally Posted by F350-6
It could also be your shocks bottoming out, the axle blocks hitting, or a B&W turnover ball installed in the wrong location (Don't ask how I know about the last one). Have you crawled under the truck to see if it looks like anything has been rubbing and left a clean spot in the dirt?
Thanks for ideas, crawled under truck, nothing hitting except overload
springs on brackets bolted to frame which I think is normal. Would Shocks
bottom out before axle blocks hit? Thanks Randy
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Post Fiend
Joined: Mar 2007
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From: Texas
Originally Posted by Ridgerunner500
F350-6
Thanks for Ideas, I crawled under truck and only thing rubbing is overload
springs on bracket of frame, that would happen with load. Would shocks
bottom out before axle blocks hit? Can I ask is a B&W tunover ball for
pulling trailer(ball&hitch)? Thanks Randy
Thanks for Ideas, I crawled under truck and only thing rubbing is overload
springs on bracket of frame, that would happen with load. Would shocks
bottom out before axle blocks hit? Can I ask is a B&W tunover ball for
pulling trailer(ball&hitch)? Thanks Randy
The B&W is a gooseneck hitch I had installed in the wrong location on my truck. I can't use the turnover feature because the ball hits the rear sway bar. Did you check your rear sway bar (if equipped)?
Junior User
Joined: Mar 2007
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From: Kalispell, MT
When I bought my "01 F-350 in 2004, the brake guy found four cracks on each rear leaf spring. I bought new ones from Ford cheaper than the boneyard wanted for used ones...I think that Ford was aware of a problem there.
Scott
Scott
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Junior User
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From: Front Range Colorado
Originally Posted by F350-6
I believe the blocks should hit first, but if you can imagine what I'm talking about is it that kind of sound, or a more quiet clunk?
The B&W is a gooseneck hitch I had installed in the wrong location on my truck. I can't use the turnover feature because the ball hits the rear sway bar. Did you check your rear sway bar (if equipped)?
The B&W is a gooseneck hitch I had installed in the wrong location on my truck. I can't use the turnover feature because the ball hits the rear sway bar. Did you check your rear sway bar (if equipped)?
would imagine bottoming out on the shocks. I just can't imagine having
shocks bottoming out before the Axle blocks hit first. Could it be said
that the shocks might be shorter than need be? Randy
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
By the way, if it sounds like the shocks bottoming out then I'm leaning toward some form of suspension issue. The slip joint has a little different type of clunk. There are no grease fittings there, Ford doesn't seem to believe in them. You have to disassemble and install the grease by hand.
I wouldn't rule out a broken leaf either. I still suggest getting under there and visually inspecting and grabbing and shaking anything you can get your hands on to see if you can find something loose or out of alignment. With all the bolts and bushings on these trucks its trial and error.
Have you tried jumping up and down on the back bumper to see if you can hear anything?
I wouldn't rule out a broken leaf either. I still suggest getting under there and visually inspecting and grabbing and shaking anything you can get your hands on to see if you can find something loose or out of alignment. With all the bolts and bushings on these trucks its trial and error.
Have you tried jumping up and down on the back bumper to see if you can hear anything?
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Junior User
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From: Front Range Colorado
While I was under there I looked at all leaf springs and had a die bar which
I used to pry at all things related to suspension and everything seemed tight.
Just went out and jumped up and down on bumper and everthing was quiet.
Nothing is close to sway bars. I'm leaning toward those shocks. Randy
I used to pry at all things related to suspension and everything seemed tight.
Just went out and jumped up and down on bumper and everthing was quiet.
Nothing is close to sway bars. I'm leaning toward those shocks. Randy
Logistics Pro
Joined: Jun 2005
Posts: 4,243
Likes: 16
From: AZ
[QUOTE=Ridgerunner500]
No zerk...you have to disaasemble and refill.
Originally Posted by nlemerise
Sounds like the driveline slip joint, IIRC...
Question! looked for zerk and there is not one. How do you grease?
The boot is sealed. Sometimes I long for the good old
days of grease Zerks as a standard item, sorry for my stupidity. Randy
- Fill the driveshaft slip yoke boot with approximately 10 grams (0.36 ounce) of grease.
- Use Premium Long-Life Grease XG-1-C or equivalent meeting Ford specification ESA-M1C75-B.
Question! looked for zerk and there is not one. How do you grease?
The boot is sealed. Sometimes I long for the good old
days of grease Zerks as a standard item, sorry for my stupidity. Randy