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12-02-2016, 09:47 PM
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#1 |
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Registered User
Join Date: May 2016
Location: South Williamsport
Posts: 174
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1974 K10 1/2 ton Posi
Just as the title says. I have a 1974 K10 1/2ton truck with a 12-bolt open diff. I want a posi in it, and not air lockers. Anyone know a good one to put in, if not a full time. I currently am running 33"x12.5"x15" BFGs and it does no good for me to only have one wheel spinning.
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12-02-2016, 10:02 PM
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#2 |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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Re: 1974 K10 1/2 ton Posi
detroit tru trac
__________________
Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually |
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12-03-2016, 08:07 AM
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#3 | |
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Registered User
Join Date: Aug 2005
Location: Louisiana
Posts: 711
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Re: 1974 K10 1/2 ton Posi
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12-04-2016, 12:03 AM
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#4 |
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Registered User
Join Date: May 2016
Location: South Williamsport
Posts: 174
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Re: 1974 K10 1/2 ton Posi
Thanks guys. I take it it's a fairly simple swap-in?
Also, spline count for 1/2 K10? I'm not 100% sure. If I recall correctly it's a 8.875 30spline, right? Then I'll obviously also have to know my gear ratio. Last edited by Hewfil1; 12-04-2016 at 12:08 AM. |
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12-04-2016, 04:42 PM
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#5 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: 1974 K10 1/2 ton Posi
Yeah you will need to know which ratio you have which would be in the glove box. I've heard good things about the trutrac and personally I had an auburn clutch type lsd that worked well. Will have to setup the gears after install so if you want to swap ratios you are 1/2 way there.
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-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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12-05-2016, 02:43 AM
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#6 |
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Registered User
Join Date: Oct 2009
Location: Buhl, Idaho
Posts: 1,438
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Re: 1974 K10 1/2 ton Posi
Got one in the front of my k10 and it works great no issues.
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86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903 
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12-05-2016, 11:17 AM
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#7 | |
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Registered User
Join Date: May 2016
Location: South Williamsport
Posts: 174
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Re: 1974 K10 1/2 ton Posi
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12-05-2016, 01:52 PM
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#8 |
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Registered User
Join Date: Oct 2009
Location: Buhl, Idaho
Posts: 1,438
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Re: 1974 K10 1/2 ton Posi
Yep no problem it is a Limited slip so it behaves very well on the street. Turns like it did with nothing in the front. I also have a np208 and warn hubs.
__________________
86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903
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12-05-2016, 10:12 PM
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#9 | |
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Registered User
Join Date: May 2016
Location: South Williamsport
Posts: 174
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Re: 1974 K10 1/2 ton Posi
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