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10-01-2004, 08:55 PM
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#1 |
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Registered User
Join Date: Jan 2003
Location: Corpus Christi, TX
Posts: 47
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3.73 to 4.10 w/ traction
I'd like to change out my front and rear diffs to posi/locker including a gear change. Any ideas? Currently running 8.5 10 bolt with 3.73. Economically, 14 bolt, D60, or air lockers aren't feasible at the moment. Thanks, Chad.
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1985 GMC K1500 350 700r4 NP208 3.73 |
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10-02-2004, 10:12 AM
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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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Quote:
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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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10-02-2004, 10:40 AM
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#3 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Be thankful you have 3.73s, my 85 K5 had 3.08s! Anyway what size tires you going to run? That and off road use need to be factored into whether a good tight limited slip or locker is need for the rear. Since you'll have the diffs apart go with units that replace the open diff carrier(vice lunch box lockers).
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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10-02-2004, 10:49 AM
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#4 |
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Registered User
Join Date: Jan 2003
Location: Corpus Christi, TX
Posts: 47
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I just added 35" BFG's and that's why I want to move to 4.10 gears. I'm on pavement the majority of the time and the offroading I do is mud, sand, etc., but no rock crawling or Moab-type stuff. I do occasionally have a boat behind me as well. So I guess I'm leaning towards a front and rear setup with good street manners, but the ability to get me out of a sticky situation when necessary. Thanks for the help, Chad.
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1985 GMC K1500 350 700r4 NP208 3.73 |
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10-02-2004, 10:58 AM
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#5 |
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Registered User
Join Date: Jan 2003
Location: Corpus Christi, TX
Posts: 47
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cochino12
What's your True trac gear ratio? Also, how much? Shipping? What was it used in? What shape is it in? Thanks, Chad.
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1985 GMC K1500 350 700r4 NP208 3.73 |
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10-07-2004, 11:50 AM
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#6 |
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Registered User
Join Date: Jan 2003
Location: Corpus Christi, TX
Posts: 47
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Maybe I should jump up to 4.56 or 4.88? Any ideas? Thanks, Chad.
__________________
1985 GMC K1500 350 700r4 NP208 3.73 |
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10-07-2004, 01:28 PM
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#7 | |
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It followed me home?
Join Date: Mar 2003
Location: Yup
Posts: 5,751
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Quote:
__________________
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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