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04-10-2011, 05:21 PM
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#1 |
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Carpe manana
  
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,453
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K20 SPID lacks front locking hubs...why?
The 72 truck is an original K20 so why no front locking hubs listed on the SPID? Error at the plant? Did an alternative exist? I'd appreciate any input. It's got locking hubs now.
Thanks, Pete
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308  Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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04-10-2011, 08:49 PM
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#2 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: K20 SPID lacks front locking hubs...why?
They were optional and your truck didn't have that option. That would explain why it has the vintage Selectro hubs that were installed.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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04-10-2011, 08:59 PM
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#3 |
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Carpe manana
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,453
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Re: K20 SPID lacks front locking hubs...why?
Please forgive my cluelessness but unless it had full time 4wd or auto engaging hubs I don't understand how the front axle would operate when in 4wd.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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04-10-2011, 10:41 PM
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#4 |
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SWB 4x4 Collector
 
Join Date: Jun 2001
Location: Osage City, KS
Posts: 5,156
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Re: K20 SPID lacks front locking hubs...why?
Drive slugs..... I believe. Someone else will chime in.
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TREVOR  1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned)1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT)http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205)1970 Chevelle SS (LS5 454,th400,8track,buckets,tach):2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
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04-10-2011, 11:06 PM
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#5 |
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Registered User
Join Date: Apr 2011
Location: Clinton, CT
Posts: 101
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Re: K20 SPID lacks front locking hubs...why?
Older 4x4s had bolt on drive flanges. The flange slides over the splines on the axle shaft and bolts to the hub, making the front axle engaged at all times. I guess some would find it convenient to just have to throw the lever on the tcase and be in 4wd without getting out and locking the hubs, but it causes a lot of wear and tear on the front diff. With the old drive flanges, you can't UNlock the hubs and disengage themfrom the axle, so when you're rolling, even in 2wd,the front axles and diff are turning.
Posted via Mobile Device |
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04-10-2011, 11:39 PM
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#6 |
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Registered User
Join Date: Feb 2011
Location: madison, IN.
Posts: 484
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Re: K20 SPID lacks front locking hubs...why?
those hubs look pretty sweet and different i like them!!! does any one know where a guy can find some?
not tryn to hijack... thanks, feller |
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04-10-2011, 11:57 PM
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#7 | |
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Registered User
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
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Re: K20 SPID lacks front locking hubs...why?
Quote:
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04-11-2011, 10:03 AM
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#8 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: K20 SPID lacks front locking hubs...why?
The original design of a 4wd has the axles engaged all the time,just like the rear. "Locking hubs" is a misnomer. They are actually lock-outs. They are an aftermarket improvement that became a standard,but was still an option in the 67-72s,although most got them. Look at an original WWII Jeep or Willys and you will see there is just a bolt on cap over the hub.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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04-11-2011, 12:43 PM
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#9 |
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Carpe manana
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,453
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Re: K20 SPID lacks front locking hubs...why?
Now I get it. Thanks for the feedback. The gas mileage must have been lousy with the 4.56 gears out back and an always engaged front axle.
Feller: Don't have a clue where to get these hubs but maybe when the Selectros are removed this fall I can swap you for a nice set of Spicers?
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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04-11-2011, 02:08 PM
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#10 |
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Registered User
Join Date: Feb 2011
Location: madison, IN.
Posts: 484
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Re: K20 SPID lacks front locking hubs...why?
ill have to see what i have
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04-13-2011, 08:51 PM
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#11 | |
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They call me the Breeze...
Join Date: Jul 2007
Location: New York
Posts: 2,251
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Re: K20 SPID lacks front locking hubs...why?
Quote:
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Mike 69 K20 "Beer is proof God loves us and wants us to be happy"....Ben Franklin |
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04-13-2011, 10:41 PM
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#12 |
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Account Suspended
Join Date: Mar 2011
Location: Norman OK
Posts: 67
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Re: K20 SPID lacks front locking hubs...why?
I've got those hubs on mine too, Selectros. They're pretty good.
If you do swap them for something else don't throw them away. Mail 'em to me 
Last edited by GMC4wheels71; 04-13-2011 at 10:41 PM. |
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04-23-2011, 10:09 PM
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#13 |
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Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: K20 SPID lacks front locking hubs...why?
Anybody got pics of the drive slugs?
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05-08-2011, 01:24 AM
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#14 |
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Registered User
Join Date: Jul 2010
Location: Knoxville,TN
Posts: 1,185
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Re: K20 SPID lacks front locking hubs...why?
Yep , here is my 72 .
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1972 Custom Deluxe 20 4x4 burb 1971 GMC SWB CST 4x4 1972 GMC k20 4x4 (X- brush truck ) 1971 Chevy CST Blazer 4x4 1971 Chevy C/10 1970 Cab Chassis C30 157" 1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica ) 1988 Chevy V30 4x4 wrecker challenger 4812 |
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05-08-2011, 11:36 AM
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#15 |
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Registered User
Join Date: Jun 2006
Location: MO.
Posts: 970
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Re: K20 SPID lacks front locking hubs...why?
milemarker.com
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