Howling noise
Hotshot
Joined: Dec 2014
Posts: 17,826
Likes: 3,110
From: Jersey Shore
Post 57 - the wheels will still spin the differential by way of the axles so pull the driveshaft still allows the differential to spin if that's the source of the noise.
Post 58 - the ring gear and differential to not pump oil to the hubs. The wheel hubs take very little oil to lube, and that oil is mostly moved around when cornering.
Lift one wheel off the ground, pull that axle shaft. While the axle shaft seals by way of the shafts O-Ring, which can be repeatably used, a block off plate can be bolted in its place with a gasket seal. You can do that with some aluminum stock, but if you want to go backyard even a plate of plywood would seal it for the short run down the road, just use RTV or cut a gasket to fit the flat of the hub. Back on the ground and do the other side.
The only reason to lift the wheel is to get it higher so the oil doesn't drain too much. Sloped ground, with a wheel to the high side works too.
Post 58 - the ring gear and differential to not pump oil to the hubs. The wheel hubs take very little oil to lube, and that oil is mostly moved around when cornering.
Lift one wheel off the ground, pull that axle shaft. While the axle shaft seals by way of the shafts O-Ring, which can be repeatably used, a block off plate can be bolted in its place with a gasket seal. You can do that with some aluminum stock, but if you want to go backyard even a plate of plywood would seal it for the short run down the road, just use RTV or cut a gasket to fit the flat of the hub. Back on the ground and do the other side.
The only reason to lift the wheel is to get it higher so the oil doesn't drain too much. Sloped ground, with a wheel to the high side works too.
Lead Driver
Joined: Sep 2012
Posts: 7,826
Likes: 96
From: Manteca,Ca
Description: LOW/REVERSE GEAR SET PINION SHAFT(S) THAT MAY WALK OUT, CAUSING METALLIC PARTICLE CONTAMINATION. CUSTOMER SATISFACTION PROGRAM 04B24. TRANSMISSION REVERSE PLANET REPLACEMENT. *TT SUPPLEMENT #1 AND #2. *TT SUPPLEMENT #3. *TT
More to come
More to come
Thread Starter
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Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
Thanks
I will know more after this next test.
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Thread Starter
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Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
https://m.youtube.com/watch?v=B-bCLwkUrxg
For your viewing pleasure , it's amazing how this guy knows where all the parts go back , lol the Trans May or may not be the issue , sure are a lot of gears plates that are burnt .
For your viewing pleasure , it's amazing how this guy knows where all the parts go back , lol the Trans May or may not be the issue , sure are a lot of gears plates that are burnt .
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Lead Driver
Joined: Sep 2012
Posts: 7,826
Likes: 96
From: Manteca,Ca
That and a bigger hammer , lol, it's at 15.38 min 3rd and reverse planet and 17.25 reverse planet
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Cargo Master
Joined: Jun 2010
Posts: 2,113
Likes: 4
From: Iowa
I put it on jack stands, removed the tires axles and driveshaft, spun the pinion yoke by hand it feels smooth. I also checked the rear hub bearings and they feel fine also. With the axles out and it up on jack stands i ran the truck and could still hear the noise. It almost sounds like it is comeing out of the T case output. The T case is a NP 271(manual shift
Thread Starter
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Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
Think I found it
I started to remove the driveshaft and the two axles, got the driveshaft down and gave that center suport bearing a good spin. It didn't feel real bad but you could feel and hear the metal to metal contact. So leaving the axles in and take it for a test drive couldn't hear the growl. In the process now of replacing that bearing.
Thread Starter
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Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
Thank you
As you can imagine there was some noises coming from the front end and I had to be careful with it not to break anything.
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As you can imagine there was some noises coming from the front end and I had to be careful with it not to break anything.
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