what year 14 bolt for my 72 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HEISEL · 08-08-2011, 09:36 AM

I know that this info is prob out there but I'm not sure what's true and what's not. I want to upgrade to a 14 bolt ff with 6 lugs. Did GM make this? And will it fit in my truck? I know that I'll need a new driveshaft. This is what I have, 1972 k10 4x4 swb.

o ya. I would like to have a 6 lug because I just got 4 new mt classic II's with the 6 lug pattern. Can I convert an 8 lug? please help!

Redcap · 08-08-2011, 10:26 AM

Quote:

Originally Posted by HEISEL

I know that this info is prob out there but I'm not sure what's true and what's not. I want to upgrade to a 14 bolt ff with 6 lugs. Did GM make this? And will it fit in my truck? I know that I'll need a new driveshaft. This is what I have, 1972 k10 4x4 swb.

o ya. I would like to have a 6 lug because I just got 4 new mt classic II's with the 6 lug pattern. Can I convert an 8 lug? please help!

Full-floats were never 6-lug. Someone on here did a FF 6-lug conversion, but it required considerable machining.

HEISEL · 08-08-2011, 11:38 AM

thank you, thats what i needed to know.

Mike C · 08-08-2011, 08:15 PM

You can get a SF 14 with 6 lugs. They are significantly stronger than a 12 bolt. If you are going to build up an axle or make any changes and want to stay 6 lug, that's what I would do.

I have a 4.10 geared SF 14 with 8 lugs. I have been pretty happy with the swap, just not the Gov-Lok.

I have broken at least 6 12 bolts, so I am not a fan. Would have been miles ahead with the SF swap years ago.

70 beast · 08-08-2011, 09:36 PM

http://www.rpmoffroad.com/product/11...Bolt+Hubs.html

this place offers new replacement hubs in multiple different bolt patterns

LONGHAIR · 08-09-2011, 06:00 AM

There was a 14 bolt, 6 lug axle available in the 88-98 generation of trucks. They were in the lighter GVW version of the 3/4ton. They have meteric lugs though, 14mm IIRC.

trevor73402 · 08-09-2011, 07:50 AM

Quote:

Originally Posted by 70 beast

http://www.rpmoffroad.com/product/11...Bolt+Hubs.html

this place offers new replacement hubs in multiple different bolt patterns

I figured someone out there made hub conversions, I just never knew who they were. However at $380 a pair ($760 for all 4), I'd just buy a new set of wheels.

I'm rebuilding my current 10 bolts with new bearings, seals, and 4.56 gears. I considered the option of going 14 bolt, but I dont/won't ever need that kind of beef in my axles. My K5 will be a daily driver and see some light off-road, so no point in going 8 lug. Also, I just bought new wheels and tires so it's beneficial in my case to stay 6 lug. They dont make any decent alloy wheels in a 15" 8 lug configuration.
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**special-K** · 08-09-2011, 08:39 AM

I'd look for that 88-98 6-lug 14-bolt,the semi-floater. Look for 2500 4wds with no fender flares and 6-lugs.

ncgamedog · 08-09-2011, 12:10 PM

Quote:

Originally Posted by trevor73402

I figured someone out there made hub conversions, I just never knew who they were. However at $380 a pair ($760 for all 4), I'd just buy a new set of wheels.
Posted via Mobile Device

You wouldn't need 4 unless you were trying to build a 6x6 for some reason. Just one set for the rear. That's actually not a bad deal IMO. You could shave the FF 14b slap those bad boys on there and have never ending beef for very little investment.

budman k20 · 08-09-2011, 01:29 PM

FWIW,
Another source for a 6 bolt rear with the 14 bolt cover are half ton diesel trucks and suburbans up to 98. They will have 3:73 gears in them.

Redcap · 08-09-2011, 02:56 PM

Quote:

Originally Posted by budman k20

FWIW,
Another source for a 6 bolt rear with the 14 bolt cover are half ton diesel trucks and suburbans up to 98. They will have 3:73 gears in them.

Or 4.10.

Mike C · 08-09-2011, 09:15 PM

Some Z71 extended cab 1/2 tons had 6 lug SF14, as well as 2x4 2500 light duty 88-98 trucks.

HEISEL · 08-09-2011, 09:50 PM

ok, thanks fellas! Ill start looking for one. would the 88-98 12 bolt into my 72?

SWB4x4 · 08-10-2011, 03:15 PM

Quote:

Originally Posted by Mike C

Some Z71 extended cab 1/2 tons had 6 lug SF14, as well as 2x4 2500 light duty 88-98 trucks.

I believe it was more common with the GMC and not the Chevy. But you have a solid axle fe and the newer rigs had ifs.

08-08-2011, 09:36 AM	#1
HEISEL Registered User Join Date: Feb 2011 Location: Blue springs, mo Posts: 56	what year 14 bolt for my 72 4x4 I know that this info is prob out there but I'm not sure what's true and what's not. I want to upgrade to a 14 bolt ff with 6 lugs. Did GM make this? And will it fit in my truck? I know that I'll need a new driveshaft. This is what I have, 1972 k10 4x4 swb. o ya. I would like to have a 6 lug because I just got 4 new mt classic II's with the 6 lug pattern. Can I convert an 8 lug? please help! __________________ 1972 k/10 4x4 swb 2011 camaro SS/RS M6

08-08-2011, 11:38 AM	#3
HEISEL Registered User Join Date: Feb 2011 Location: Blue springs, mo Posts: 56	Re: what year 14 bolt for my 72 4x4 thank you, thats what i needed to know. __________________ 1972 k/10 4x4 swb 2011 camaro SS/RS M6

08-08-2011, 08:15 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: what year 14 bolt for my 72 4x4 You can get a SF 14 with 6 lugs. They are significantly stronger than a 12 bolt. If you are going to build up an axle or make any changes and want to stay 6 lug, that's what I would do. I have a 4.10 geared SF 14 with 8 lugs. I have been pretty happy with the swap, just not the Gov-Lok. I have broken at least 6 12 bolts, so I am not a fan. Would have been miles ahead with the SF swap years ago. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

08-08-2011, 09:36 PM	#5
70 beast Certified Hobbiest Join Date: Jul 2007 Location: Sacramento, Ca Posts: 384	Re: what year 14 bolt for my 72 4x4 http://www.rpmoffroad.com/product/11...Bolt+Hubs.html this place offers new replacement hubs in multiple different bolt patterns __________________ my jimmy build http://67-72chevytrucks.com/vboard/s...d.php?t=352536

08-09-2011, 08:39 AM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: what year 14 bolt for my 72 4x4 I'd look for that 88-98 6-lug 14-bolt,the semi-floater. Look for 2500 4wds with no fender flares and 6-lugs. __________________ "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 ~

08-09-2011, 01:29 PM	#10
budman k20 1972 K20 Join Date: Apr 2008 Location: Greenfield MN Posts: 360	Re: what year 14 bolt for my 72 4x4 FWIW, Another source for a 6 bolt rear with the 14 bolt cover are half ton diesel trucks and suburbans up to 98. They will have 3:73 gears in them.

08-09-2011, 09:15 PM	#12
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,709	Re: what year 14 bolt for my 72 4x4 Some Z71 extended cab 1/2 tons had 6 lug SF14, as well as 2x4 2500 light duty 88-98 trucks. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

08-09-2011, 09:50 PM	#13
HEISEL Registered User Join Date: Feb 2011 Location: Blue springs, mo Posts: 56	Re: what year 14 bolt for my 72 4x4 ok, thanks fellas! Ill start looking for one. would the 88-98 12 bolt into my 72? __________________ 1972 k/10 4x4 swb 2011 camaro SS/RS M6



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