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04-16-2014, 11:32 PM
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#1 |
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Registered User
Join Date: Nov 2008
Location: Gwinnett GA
Posts: 1,803
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Axle Swap or no?
Got an 84 K10 and my rear axle broke. The ring, pinion, carrier, everything. I have been on the lookout for a replacement, but it has been tough. The truck has 3.08 gears, and has a 305 with a SM465 4 speed.
Instead of finding another 3.08 rear to swap in, which I can probably find during the spring, I found an interesting truck for sale. a 79 K30, with just a frame, cab, tranny t-case and axles. Guy will deliver it for $500 total. The truck was a town truck way back when. Could that work? I would like stronger axles, but would also like a deeper gear ratio. What do you all think?
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1982 K10 SWB 1987 V20 - Sold - Doh! |
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04-17-2014, 12:04 AM
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#2 |
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Registered User
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
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Re: Axle Swap or no?
K30 spring perch is narrower than yours. Two options: One: cut perches off, move out, re-weld them. Two: knock rivets out of both truck's rear leaf spring brackets, bolt the K30 rear, leaves, and brackets onto your truck. If donor truck is same wheelbase as yours, you should be able to use it's drivelines, otherwise you will need conversion ujoints.
Front axle bolts in. You're getting a K30 rolling frame for $500? Delivered? BUY IT! Around here that Dana 60 front can still fetch $750-$1,000 alone.
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Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96 |
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04-17-2014, 12:45 AM
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#3 |
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Another Day, Another Dollar
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
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Re: Axle Swap or no?
Stick everything on the 1 ton frame and you will have a much more robust truck! That's a steal of a deal!!!!
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-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square" 
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04-17-2014, 01:02 AM
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#4 |
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Registered User
Join Date: Mar 2014
Location: Redwood City
Posts: 242
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Re: Axle Swap or no?
I agree. Don't swap the axle swap the truck. The K30 is going to have a lower gear ratio, what engine did it have? If it was a big block or a detroit it will most likely have 4.10s or something close to that.
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1991 R3500 3+3 C+C 6.2/4l80e/14ff Fleetside Dually 1992 K2500 ECLB 5.7/4l80e/14sf(g80) 8600gvwr 1991 CR500 (95 Burb wouldn't stop catching fire  )
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04-17-2014, 05:30 AM
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#5 |
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Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: Axle Swap or no?
If the k30 is worth building go for it if not take both axles maybe the t case of its a np205.
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