Did any 69-72 K10/20's not have locking hubs? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72 tigger · 04-09-2016, 08:49 PM

I've noticed most 4x4 SPID's have locking hubs listed- were they an option? Seems like all the K10/20's pictured on here have locking hubs- may be a stupid question

CrewCab59 · 04-09-2016, 09:56 PM

The 3/4 ton had drive flanges or lockouts , see pics.

Thanks

**special-K** · 04-09-2016, 10:35 PM

Yes, they were an option. Just like automatic transmissions till recently. Almost all vehicles came with automatic but it was still like a $1,000 option. At least when I ordered my '92 it was. I opted for the 5spd manual and that option took $1,000 off the price.

72 tigger · 04-10-2016, 05:52 PM

So, you could get a 4x4 with full time four wheel drive?- hubs that don't engage/disengage

CrewCab59 · 04-10-2016, 06:03 PM

Quote:

Originally Posted by 72 tigger

So, you could get a 4x4 with full time four wheel drive?- hubs that don't engage/disengage

The drive flanges in above pics is what the 3/4 ton had if you didn't have lockout hubs , so yes hubs were locked but the T-case still had 2wd . Gm didn't use the full time Np203 T-case until 1973.

**57taskforce** · 04-10-2016, 06:53 PM

Quote:

Originally Posted by CrewCab59

The drive flanges in above pics is what the 3/4 ton had if you didn't have lockout hubs , so yes hubs were locked but the T-case still had 2wd . Gm didn't use the full time Np203 T-case until 1973.

Yep this is correct. Dodge and jeep do and have done the same thing on there solid front axles for a long time. Even some late model gm stuff have the front differential locked in all the time. My 01 suburban with the auto 4x4 does. My K/20 didn't have hubs from the factory but is seems over the years many of the trucks with out factory hubs have gotten after markets or used spicers.

04-09-2016, 08:49 PM	#1
72 tigger Registered User Join Date: Apr 2008 Location: Berne IN Posts: 3,256	Did any 69-72 K10/20's not have locking hubs? I've noticed most 4x4 SPID's have locking hubs listed- were they an option? Seems like all the K10/20's pictured on here have locking hubs- may be a stupid question

04-09-2016, 09:56 PM	#2
CrewCab59 Registered User Join Date: Jul 2010 Location: Knoxville,TN Posts: 1,185	Re: Did any 69-72 K10/20's not have locking hubs? The 3/4 ton had drive flanges or lockouts , see pics. Thanks Attached Images __________________ 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

04-09-2016, 10:35 PM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Did any 69-72 K10/20's not have locking hubs? Yes, they were an option. Just like automatic transmissions till recently. Almost all vehicles came with automatic but it was still like a $1,000 option. At least when I ordered my '92 it was. I opted for the 5spd manual and that option took $1,000 off the price. __________________ "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 ~

04-10-2016, 05:52 PM	#4
72 tigger Registered User Join Date: Apr 2008 Location: Berne IN Posts: 3,256	Re: Did any 69-72 K10/20's not have locking hubs? So, you could get a 4x4 with full time four wheel drive?- hubs that don't engage/disengage



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