11-28-2006, 02:34 PM | #1 |
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Join Date: Nov 2006
Location: Jacksonville FL
Posts: 12
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New driveshaft
I am very new to the site and not sure if this has been posted before. I have a 71 GMC long bed and I am having problems with my carrier beam for my driveshaft. Is there a way to get a driveshaft made to go straight from the transmission to the rear end or would that not work.
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11-28-2006, 03:55 PM | #2 |
Senior Moment
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,185
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Re: New driveshaft
This has been debated on here a million times. YES you can go with a 1 piece drive shaft but with a long bed your better off getting a QALITY center support bearing.
The 1 piece shaft would need to be made by a shop that knows what there doing and even then you take a chance of it vibrating. Hope this helps and Good Luck
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
11-28-2006, 04:23 PM | #3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: New driveshaft
not somuch vibrating, but whipping, which feels like a vibration from the drivers seat. This will damage the tranny and rear.
A quality carrier bearing would be the prefered fix, and if you already have a quality unit, then locating the real problem would work too. These things should last 30 years. |
11-28-2006, 04:30 PM | #4 |
Licensed to Thrill!
Join Date: Apr 2006
Location: Northwest, GA
Posts: 1,673
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Re: New driveshaft
Just out of curiousity -
which is preferred on a SWB by most - Carrier bearing or a 1-piece? |
11-28-2006, 04:32 PM | #5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: New driveshaft
a SWB is short enough to go with a one piece with no problems.
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11-28-2006, 06:49 PM | #6 |
Senior Moment
Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,185
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Re: New driveshaft
Who has that link to the killer billet center support? It’s not cheap but quality usually isn’t. If I did another LWB truck I think it’s what I'd go for.
Come on one of you guys has the link for it I'm sure
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
11-28-2006, 07:13 PM | #7 | |
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Join Date: Jul 2006
Location: Pittsburgh, PA
Posts: 204
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Re: New driveshaft
Quote:
http://www.iedls.com/bearings.html
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Project Family Values Build Thread Vehicles/Projects: -1971 C10 SWB Fleetside! Gathering parts now, will begin frame-off resto soon... Pleasure in the job puts perfection in the work. -Aristotle |
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11-28-2006, 07:30 PM | #8 |
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Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
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Re: New driveshaft
I had the same problem........Although, with the Cummins, when things let go, everything let go. Three Carrier bearings(in less than a year) later I decided to hill-billy engineer something that would atleast hold together until I upgrade the rest of the driveline from the bell housing back............Anyhow, I took a bearing out of torn up carrier, machined a housing from steel, and mounted it solid to the chassis............Yeah, its a no-no to solid mount parts like that, but its going on 8 months now and I haven't had any issues with any driveline parts.
It will be nice when everything is replaced with heavier duty parts
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'72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!! |
11-28-2006, 08:36 PM | #9 |
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Join Date: Sep 2005
Location: 9000' Mountain Man
Posts: 326
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Re: New driveshaft
I ran the original (factory) carrier bearing for 30 years and 350,000 miles before it started making noise. It was replaced by a NAPA bearing 5 years ago and it's still going GREAT! Quality costs a little more but not much more. Stay away from Chinese bearings - they're junk.
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