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#31583 06/29/2004 10:21 PM | Joined: Apr 2004 Posts: 21 New Guy | | New Guy Joined: Apr 2004 Posts: 21 | A couple of months ago I started hearing a popping noise coming from the rear of my '63 C-20 (5.13). It would happen when I would start to back up. It would only happen occasionally. I figured it was a u-joint. I dropped both halves of the shaft and found one bad u-joint, I replaced all three and the carrier bearing. I still hear the pop occasionally, especially under a very heavy load (starting up with 10,000 pounds plus of trailer).
Any body got any ideas? Ring gear & pinion? Spider gears? does anyone have any idea where to get parts for this rear end? My local axle shop said they can't get them, or it would be very, very expensive.
Will the rearend (pumpkin) out of a '58 one-ton fit? I've got a spare one of those.
Glen E.
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#31584 06/30/2004 4:10 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | First off, what kind of wear does the slip yoke have? It can make that kind of noise. Can you get any lateral movement through the joint? Also, when you reassembled the two halves, did you make sure the joints were in phase? Another possibility is, you could have an Eaton locker for a rear diff. They make noise, especially around corners. Make sure your wheel bearings are tight and getting gear lube. May be your spiders, but if it's a locker, it won't have them. An Eaton has a removable "pumpkin" and a rear inspection plate. Over the years, that truck could have about anything under it.
Good luck and keep us posted on what you find,
Scott | | |
#31585 06/30/2004 9:57 AM | Joined: Apr 2004 Posts: 21 New Guy | | New Guy Joined: Apr 2004 Posts: 21 | The truck has the original rear end, dad bought it new in '63. The slip joint is fine. I had the driveshaft balanced when I replaced the u-joints and everything is in phase.
Glen E.
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#31586 06/30/2004 1:59 PM | Joined: Jan 2003 Posts: 687 Shop Shark | | Shop Shark Joined: Jan 2003 Posts: 687 | Glen E: I had a 76 Vette, thing started doing that after rearend was drained and refilled. Wrong lube, so we re-drained it, added the right oil. Then we took it out and started backing it up and doing a figure 8 (helps lubricate).
It really worked! popcorn The Truth is Out There (just a suggestion) | | |
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