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07-19-2023, 07:05 PM
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#1 |
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Senior Member
 
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Front U Joints Help
Well, either I'm driving an old-fashioned steam locomotive with a bell or my front U joints need to be replaced. I can't believe they gave out after only 51 years...
 It's a 1972 K/5 Blazer with the original factory U joints. I measure the cap at 1.20 as nearly as I can tell. I imagine once I get it torn apart I might as well replace the ball joints and seals as well. If any of you have part numbers and/or advice I'd be happy to hear from you. Thanks.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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07-20-2023, 09:58 AM
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#2 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Front U Joints Help
What axles are under your Blazer? I've rebuilt Dana 44's and 60's using the BOM number stamped on the top of the left side tube. Here's a link to some good info on the Dana 44's https://www.dennysdriveshaft.com/c71...ont_chevy.html The axle u-joints are Dana Spicer 5-260X...
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
Last edited by Ironangel; 07-20-2023 at 11:27 AM. |
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07-20-2023, 10:43 AM
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#3 |
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Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: Front U Joints Help
It's a Dana 44. Here's what I've ordered. I just don't want to get it all torn down and then end up waiting for something I neglected.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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07-20-2023, 10:59 AM
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#4 |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: Front U Joints Help
I would add a couple spindle bearing kits, SPK-1, replace the two lip seals and needle bearing on the back side of the spindle while you're in there.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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07-20-2023, 11:35 AM
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#5 |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Front U Joints Help
The 5-760X u-joints are for 73 and up axles. The 69-72 axles take 5-260X u-joints. https://www.dennysdriveshaft.com/p17...fits_chev.html
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"
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07-20-2023, 12:26 PM
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#6 | |
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All stock and staying that way
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,824
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Re: Front U Joints Help
Quote:
72 with axles stamped 603333 or 603334 use the 5-760X joints 72 and older axles stamped 603351 or 603352 use the 5-260X joints
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..  1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...  2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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07-20-2023, 01:00 PM
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#7 | ||
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Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: Front U Joints Help
Quote:
Quote:
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson Last edited by truckster; 07-20-2023 at 01:10 PM. |
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07-20-2023, 01:03 PM
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#8 | |
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Senior Member
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: Front U Joints Help
Quote:
Do you have a link for the BOM lists?
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"
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07-20-2023, 01:34 PM
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#9 | |
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Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
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Re: Front U Joints Help
Quote:
https://www.rockauto.com/en/catalog/...+bearing,10498 https://www.rockauto.com/en/partsearch/?partnum=sbk-1
__________________
'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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