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01-10-2021, 11:18 AM | #1 |
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Join Date: May 2014
Location: Ontario
Posts: 207
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39 banjo rear hub pitting?????
Hello fellas I'm at my wits end, what would you suggest besides finding another rearend, I've looked at dozens and this has been the best one I've seen in years (pretty sad but that's Canada). I've read about Rear Axle Repair Sleeves, but I'm not sure if anyone around me could do it, also read it may or may not be safe? Ie failure?
Last edited by rust revival; 01-10-2021 at 01:25 PM. |
01-10-2021, 11:56 AM | #2 |
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Location: Wisconsin
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Re: 39 banjo rear hub pitting?????
I've repaired them with new sleeves and they have worked very well. I had a very qualified machine shop turn them down and I installed the sleeve per the manufacturer instructions. I'm still running them and would do it again.
Pat |
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01-10-2021, 12:18 PM | #3 |
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Location: newark, delaware
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Re: 39 banjo rear hub pitting?????
Its not a complicated job, but you need a lathe with a big enough swing to clear the spring hanger.
Becareful who you get the sleave from. The best ones i have found are from the Columbia rear guy that i think is in Tennessee. They require the least amount of material to removed for installation |
01-10-2021, 02:44 PM | #4 |
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Join Date: May 2014
Location: Ontario
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Re: 39 banjo rear hub pitting?????
Awesome thanks for the info guys, I'll try to the find the columbia guys contact info
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01-10-2021, 07:35 PM | #5 |
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Location: Perth, Western Australia
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Re: 39 banjo rear hub pitting?????
Ive just been through it, big task. Lucky I have a good friend with a machine shop.
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01-10-2021, 07:43 PM | #6 |
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Re: 39 banjo rear hub pitting?????
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Last edited by cas3; 01-10-2021 at 07:44 PM. Reason: add |
01-11-2021, 12:48 AM | #7 |
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Join Date: May 2010
Location: Near Rising Sun, Maryland
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Re: 39 banjo rear hub pitting?????
Third Generation Automotive (Michael Driskell) has those repair sleeves for sale on ebay at a good price. You could probably call him directly and place an order rather than going thru ebay.
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John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein Last edited by JM 35 Sedan; 01-12-2021 at 05:22 AM. |
01-11-2021, 09:52 AM | #8 |
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Location: Snohomish,WA
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Re: 39 banjo rear hub pitting?????
I had seen a video of cutting the bearing surface down on a brake lathe with the banjo end of the axle tube hanging away from the lathe. Has anybody here done that?
Last edited by uncle buck; 01-17-2021 at 01:14 AM. |
01-11-2021, 10:11 AM | #9 |
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Join Date: May 2010
Location: Solihull, England.
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Re: 39 banjo rear hub pitting?????
I did the job on my lathe. It would not quite swing so I heated and bent the spring hanger and heated and bent it back again afterwards. One way around the lathe size conundrum.
I took a video at the time (poor quality, took on my phone). https://youtu.be/sk42aYMYKyk Mart |
01-15-2021, 12:42 PM | #10 |
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Join Date: Dec 2010
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Re: 39 banjo rear hub pitting?????
Here is another recommendation:
Hot Rod Works 3719 Lake Ave. Caldwell, Idaho 83605 Phone: 1-208-455-7971 Email: [email protected] |
01-16-2021, 12:07 PM | #11 |
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Location: Perry OH
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Re: 39 banjo rear hub pitting?????
I have a question should the area be ground ? Is the surface area hard and would the repair sleeve be hard ?
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01-16-2021, 12:49 PM | #12 |
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Location: newark, delaware
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Re: 39 banjo rear hub pitting?????
Original surface is pretty tough but carbide does a nice job turning it.
Speed plays a big factor in both rotation and feed so does the angle of the tool bit to the surface. The repair sleaves are very hard atleast the ones i have used. Im sure someone can tell the exact rockwell rating |
01-17-2021, 08:04 PM | #13 | |
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Re: 39 banjo rear hub pitting?????
Quote:
2. the surface area we found was both hard and soft as the hardening varied in depth on the hub as we cut it. 3. the repair sleeve must be hardened, only get ones you know are USA made. When we did mine the sleeves we had were very think so we trimmed them down to save more integrity of the hub .
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01-19-2021, 11:54 AM | #14 |
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Re: 39 banjo rear hub pitting?????
Thank you all for the reply's. Has any machinist tried the spray metal system ?
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