Home » Public Forums » GMCnet » Bob Drewes' outer CV boot replacement technique
| [GMCnet] Re: Bob Drewes' outer CV boot replacement technique [message #369241 is a reply to message #369240] |
Thu, 24 March 2022 10:42   |
sgltrac
Messages: 2797
Registered: April 2011
Karma:
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Senior Member |
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The”new” drive shafts you received could have been reconditioned or rebuilt
shafts. Which are dismantled, cleaned, re greased and then assembled with
new boots. If you bought them at an auto parts chain.
Sully
Bellevue wa.
On Thu, Mar 24, 2022 at 8:17 AM James Hupy wrote:
> Hmmmm? Differences in 1 Ton axles and CV joints. Why does that not surprise
> me? Well, Bill Hubler, from Idaho developed the 1 Ton front end. And
> he installed a bunch of them, using the stock GMC axles and CV joints and
> mating them to salvage yard Chev and GMC Truck and Suburban hubs and
> brakes. Those pieces were scrounged far and wide all over the place. The
> splines on the outboard CV joint were "close" to the Chev and GMC hubs, but
> not quite an exact match.
> Time passes, and Bill, who runs a crop dusting business as well as an
> aircraft upfitting business, wanted to quit making the 1 Ton front ends. As
> Bill and Manny were both GMCWS members, one thing led to another, and Manny
> took over the 1 Ton business.
> Manny grew tired of trying to scrounge wrecking yards for his pieces,
> so he had a supplier make him 100 sets of axle assemblies. You got any
> concept of how much space that many pieces and parts takes up? A whole
> bunch. Several buildings at Mannys place on the side hill overlooking San
> Jose, California were taken up with them. Manny's business was primarily
> transmission related, and much of his shop is dedicated to rebuilding
> transmissions. He does them 3 at a time. And he lays all the parts out
> before he starts the process. I have been to Manny's place several times
> and when he is doing transmissions, it is not the best time to interrupt
> him. He is an incredible person, and his wife Deo is our travel agent. So
> we have fairly frequent contact with them both. Manny fronts 1 Ton systems
> into my shop, and perhaps others as well. When I have a coach that needs a
> transmission, I have him ship one to my installer, Sam's transmission in
> Salem, Oregon. Sam usually gives me a 2 day turn around on those deals.
> So, does it surprise me if there are differences in this stuff? Not
> one bit. But, 50,000 miles is a bunch. But not for the inner CV's without
> torn boots. They should go a very long time. Outers?? Probably don't last
> as long because of the turning left and right. But quality control is all
> over the map on replacement parts. Auto Zone, O'Reilly, and others source
> these things all over the planet. Is there some differences in pieces? You
> bet your sweet bippy, to quote Laugh In. You do remember Laugh In, don't
> you?
> Jim Hupy
> Salem, Oregon
>
> On Thu, Mar 24, 2022, 6:25 AM Richard wrote:
>
>> James Hupy wrote on Wed, 23 March 2022 18:14
>>> The 1 ton is not assembled like the OEM front end. The outer CV joint
>>> spline joint is an interference pressed fit. No clip.
>>
>> Jim,
>> My original 1 ton half shafts came from Manny and they had the snap rings
>> on the outer CVs. I bought two 1 ton half shafts to swap over the GMC
> axles
>> and use the new CVs. IIRC one came from AutoZone and the other from
>> Carquest - both of those had snap rings.
>>
>> The Manny half shafts had about 50K miles on them and I was shocked by
> the
>> amount of wear on the inner CV bearing races. One side was bad, the
> other
>> was much worse. I'm not sure what the life/mileage expectancy is for CVs
>> in a GMC, maybe I did good getting 50K...? Boots had some cracking but
>> weren't compromised.
>>
>> Richard
>> --
>> '77 Birchaven TZE...777;
>> '76 Palm Beach under construction;
>> ‘76 Edgemonte waiting its turn
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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