Developed a roar...
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Junior User
Joined: Nov 2005
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From: Marshville NC
Developed a roar...
It snuck up on me I guess, a few weeks ago my wife rode with me in my bump. She had a horrified look on her face and said what is that roar?
I hadn't really noticed it. I had new tires put on it about 2 weeks prior to this and figured it was road noise. So long story short, I changed all 3 ujoints, and the carrier bearing. Still roaring. I'm thinking maybe pinion bearing or something in the rear end.. Anyone ever have this issue?
It's a 71 longbed 302 3 speed manual.
I hadn't really noticed it. I had new tires put on it about 2 weeks prior to this and figured it was road noise. So long story short, I changed all 3 ujoints, and the carrier bearing. Still roaring. I'm thinking maybe pinion bearing or something in the rear end.. Anyone ever have this issue?
It's a 71 longbed 302 3 speed manual.
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Junior User
Joined: Nov 2005
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From: Marshville NC
Only if I catch some air.... J/K No not that I've noticed.
Lead Driver
Joined: Aug 2003
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From: **** hole San Jose ca.
I'd say the rear large output shaft roller ball bearing. Not tail-shaft slip yoke but the large ball roller. Common problem. Even the np435 4spd had this same problem ..my 2cents
orich
orich
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Junior User
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From: Marshville NC
After driving 20 miles, wouldn't this cause the the transmission to heat up? I've felt everything under there, rearend, trans, ujoints carrier.. Nothing is getting hot.
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From: **** hole San Jose ca.
I don't think you could even tell if it was a few degrees over what the norm would be. Most of the bearing flaks settle in the rear tail housing. So the gear oil may not show a lot of metal flakes when drained ..
orich
orich
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It wouldn't necessarily get hot, just a little more play in bearing. Check the big nut on pinion shaft at input to the rearend to see if tight. I'm kinda thinkin maybe you should eleminate it being a wheel bearing also.
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Joined: Dec 2002
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From: SW Florida
I know front wheel bearings can get really noisy over time. They don't necessarily fail, but if you pull them out and clean them and then if you can see pit marks in the race and rollers that's a good sign they are at least contributing to a roaring noise.
It's one of those things I never really noticed the noise until I replaced them and then was amazed at how much quieter it was going down the road.
It's one of those things I never really noticed the noise until I replaced them and then was amazed at how much quieter it was going down the road.
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There's one aspect of the driveshaft that I've read about, but haven't had to work with and it's the orientation of the u-joints(not sure of wording)when taken out and then put back in. They must be re-installed on same plane between the two drive shafts. This is more of a question than an answer.
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Junior User
Joined: Nov 2005
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From: Marshville NC
There's one aspect of the driveshaft that I've read about, but haven't had to work with and it's the orientation of the u-joints(not sure of wording)when taken out and then put back in. They must be re-installed on same plane between the two drive shafts. This is more of a question than an answer.
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Junior User
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From: Marshville NC
Ding Ding Ding... we got a winner! It is the left rear axle bearing. Not bad but it's got some slop in it. Jacked it up and started shaking everything. It has way too much run-out.
Thanks for all the tips guys!
Thanks for all the tips guys!