Rear end clunk
Thread Starter
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Mountain Pass
Joined: Oct 2018
Posts: 111
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Rear end clunk
Hello, I recently have noticed a "clunk" sound coming from the drivers side in the rear end. I assumed it was the axle bearing and seal so I replaced it. The bearing was really bad, but after the reinstall I still have the same noise. If I rotate the drivers side rear wheel you can hear an obvious clunk sound. I do not hear that noise when rotating the passenger side rear wheel. I did notice that the passenger side wheel bearing was also sounding like it was time to be replaced. I have a feeling that something inside the 3rd member is causing this noise and also caused the bearings to go bad. It is a 1964 f100 with a 9 inch (no inspection cover in the back) and 3.89 ratio gears.
Any ideas on what could be the issue?
Thanks in advance
Any ideas on what could be the issue?
Thanks in advance
Thread Starter
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Mountain Pass
Joined: Oct 2018
Posts: 111
Likes: 0
Thanks for the quick reply! Excuse my ignorance, but is this something I can fix without removing the 3rd member?
Senior User
Joined: Aug 2017
Posts: 199
Likes: 1
From: Berkeley, CA
You sure it's not a u joint clunk?
Thread Starter
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Mountain Pass
Joined: Oct 2018
Posts: 111
Likes: 0
Thanks again!
Logistics Pro
Joined: May 2015
Posts: 4,467
Likes: 961
From: Tri Cities, TN
9 inch
Hello, I recently have noticed a "clunk" sound coming from the drivers side in the rear end. I assumed it was the axle bearing and seal so I replaced it. The bearing was really bad, but after the reinstall I still have the same noise. If I rotate the drivers side rear wheel you can hear an obvious clunk sound. I do not hear that noise when rotating the passenger side rear wheel. I did notice that the passenger side wheel bearing was also sounding like it was time to be replaced. I have a feeling that something inside the 3rd member is causing this noise and also caused the bearings to go bad. It is a 1964 f100 with a 9 inch (no inspection cover in the back) and 3.89 ratio gears.
Any ideas on what could be the issue?
Thanks in advance
Any ideas on what could be the issue?
Thanks in advance
Thread Starter
|
Mountain Pass
Joined: Oct 2018
Posts: 111
Likes: 0
I believe I am just going to get the entire 3rd member rebuilt. I noticed on the yoke that there is a bit of wear around where the U-joint makes contact. I will attempt to upload a picture soon, is wear on the yoke something I should be concerned about?
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Thread Starter
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Mountain Pass
Joined: Oct 2018
Posts: 111
Likes: 0
Thread Starter
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Mountain Pass
Joined: Oct 2018
Posts: 111
Likes: 0
It sounds like I get to buy a lot more parts than I planned. I currently have a 3.89 ratio in the rear while running a 292 y block, 3 speed manual tranny, and 235/75r15 tires. I want to get some better gas mileage, should I go with a 3.25 or 3.50 rear end ratio? I'm worried the 292 won't have the torque for 3.0's or even 3.25's.
Any opinions?
Any opinions?
