6 lug rear in 1/2 ton? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BIG DADDYS 84 · 03-06-2013, 01:49 PM

ok i know its not cool,but what a deal.picking small parts at local pull a part,found k series 1/2 ton with new rear end. 373 and posi,for $65.00 complete.who could resist? wanting to put in my 84 stepside.other than wheels different is there any thing elese i need to know? thanks guys

J Knight · 03-06-2013, 02:01 PM

I dont know for sure but K10's have a slight lift compared to a C10. You may want to check the pinion angle when you get it installed.
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Tx Firefighter · 03-06-2013, 03:33 PM

I've done the swap the other way. I had a 4wd truck with a bad rear so I put a 2wd rear into it. In my case, I swapped the axle shafts to retain the 6 lug pattern in the truck, but the axles swapped right in and the entire rear end itself bolted in.
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Rubble · 03-06-2013, 08:31 PM

Quote:

Originally Posted by Tx Firefighter

I've done the swap the other way. I had a 4wd truck with a bad rear so I put a 2wd rear into it. In my case, I swapped the axle shafts to retain the 6 lug pattern in the truck, but the axles swapped right in and the entire rear end itself bolted in.
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I did the same swap as this,but the donor truck was a 79 heavy half.If I remember correctly the axles on the heavy half were a bit thicker than the 4x4 axles so I had to run 5 bolt wheels on the back til I got hold of another set of axles.I dont think they would fit into the spiders,either that or the outer bearings....
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BIG DADDYS 84 · 03-11-2013, 09:38 AM

ok, i have an 1984c10 2wd shortbed stepside.it has the original 3.07 10 bolt single traction rear end. i bought an 1984 k10 rear diff that is 373 posi. my reserch shows axle length to be different. k10-6lug c10-5lug.this dos~nt bother me right now. i can run 6lug ralleys on rear and 5lug ralleys on front. my concerns are installing 4x4x rear into my2wd frame and springs and pin angles ect. thanks guys for any info.

Rubble · 03-11-2013, 03:18 PM

They should be the same,I swapped a rear axle from a 79 2wd to a 80 4wd. Spring perches were the same. Also swapped a rear axle from a 87 K15 to a 83 C10. Same thing,perches lined up,can't remember if I changed out the yoke or not....
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BIG DADDYS 84 · 03-13-2013, 10:51 AM

thanks,rubble

Rubble · 03-13-2013, 07:53 PM

No problem,hope it helped eh....
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ElGracho · 03-14-2013, 08:17 AM

Shock mount brackets are a little different too.

03-06-2013, 01:49 PM	#1
BIG DADDYS 84 Registered User Join Date: Aug 2012 Location: TRINITY NC Posts: 51	6 lug rear in 1/2 ton? ok i know its not cool,but what a deal.picking small parts at local pull a part,found k series 1/2 ton with new rear end. 373 and posi,for $65.00 complete.who could resist? wanting to put in my 84 stepside.other than wheels different is there any thing elese i need to know? thanks guys

03-06-2013, 02:01 PM	#2
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: 6 lug rear in 1/2 ton? I dont know for sure but K10's have a slight lift compared to a C10. You may want to check the pinion angle when you get it installed. Posted via Mobile Device __________________ John 82 Chevy Silverado 350ci/TH350

03-06-2013, 03:33 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 6 lug rear in 1/2 ton? I've done the swap the other way. I had a 4wd truck with a bad rear so I put a 2wd rear into it. In my case, I swapped the axle shafts to retain the 6 lug pattern in the truck, but the axles swapped right in and the entire rear end itself bolted in. Posted via Mobile Device

03-11-2013, 09:38 AM	#5
BIG DADDYS 84 Registered User Join Date: Aug 2012 Location: TRINITY NC Posts: 51	Re: 6 lug rear in 1/2 ton? ok, i have an 1984c10 2wd shortbed stepside.it has the original 3.07 10 bolt single traction rear end. i bought an 1984 k10 rear diff that is 373 posi. my reserch shows axle length to be different. k10-6lug c10-5lug.this dos~nt bother me right now. i can run 6lug ralleys on rear and 5lug ralleys on front. my concerns are installing 4x4x rear into my2wd frame and springs and pin angles ect. thanks guys for any info.

03-11-2013, 03:18 PM	#6
Rubble Registered User Join Date: Feb 2012 Location: Big Valley. Alberta Posts: 674	Re: 6 lug rear in 1/2 ton? They should be the same,I swapped a rear axle from a 79 2wd to a 80 4wd. Spring perches were the same. Also swapped a rear axle from a 87 K15 to a 83 C10. Same thing,perches lined up,can't remember if I changed out the yoke or not.... Posted via Mobile Device __________________ 1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution"

03-13-2013, 10:51 AM	#7
BIG DADDYS 84 Registered User Join Date: Aug 2012 Location: TRINITY NC Posts: 51	Re: 6 lug rear in 1/2 ton? thanks,rubble

03-13-2013, 07:53 PM	#8
Rubble Registered User Join Date: Feb 2012 Location: Big Valley. Alberta Posts: 674	Re: 6 lug rear in 1/2 ton? No problem,hope it helped eh.... Posted via Mobile Device __________________ 1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution"

03-14-2013, 08:17 AM	#9
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Re: 6 lug rear in 1/2 ton? Shock mount brackets are a little different too. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed



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