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05-26-2016, 01:11 PM
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#1 |
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BlahBlahBlah
 Join Date: Feb 2002
Location: Monroe, Wa.
Posts: 19,773
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3/4 axels vs 1/2
If you swap axles from a 3/4 ton to a half ton is it just a matter of bolt in? Brake lines, emergency brake cable, spring pads ... assuming its all from the same year truck?
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… … … … … … … … ... … … … … … … … … … … … Monroe Swap meet May 18-19. Mike has the same spots for the NW guys he's had forever. Lunch time BBQ at the spaces. If you have stuff to sell bring it along. If you have a question PM stllookn (Mike) here via the board. https://67-72chevytrucks.com/vboard/...d.php?t=851291 |
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05-26-2016, 02:38 PM
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#2 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Re: 3/4 axels vs 1/2
I think the fronts are easier to swap. Because the front u-joint is still a 1310. In the rear you will need a conversion u-joint to go from (typically) 1310 or GM-3R (at TC) to a 1350 (at rear end). On my K5 with the CUCV 1 ton rear 14 bolt, it looks like the e-brake cables will work with the 1/2 ton stuff. The rear brake hose should work.
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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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05-26-2016, 02:39 PM
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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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Re: 3/4 axels vs 1/2
One more thing, a 1 ton rear will need spring perches and shock mounts relocated. Not the 3/4 ton though,
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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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05-26-2016, 06:03 PM
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#4 | |
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Registered User
Join Date: Sep 2012
Location: Idaho
Posts: 623
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Re: 3/4 axels vs 1/2
Quote:
What years you referring too?
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'81 K20 Silverado , '99 Dodge Cummins 4x4, '05 Dodge Cummins 4x4, Pinstriping-Lettering-Specialty Painting |
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05-27-2016, 06:57 AM
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#5 |
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user # 2756
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Re: 3/4 axels vs 1/2
The 1 tons spring perches are at 40.5" apart, the 1/2 and 3/4 ton are 42.5" apart. Years would be between 73 and 87 (91 for blazer/burb/k30) Also, on the 1 tons the shocks are on the inside of the frame while the 1/2 and 3/4 tons mount on the outside of the frame and are staggered different.
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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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05-27-2016, 03:50 PM
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#6 |
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BlahBlahBlah
Join Date: Feb 2002
Location: Monroe, Wa.
Posts: 19,773
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Re: 3/4 axels vs 1/2
On my deal Im talking 72. So basically drive shaft stuff.
__________________
… … … … … … … … ... … … … … … … … … … … … Monroe Swap meet May 18-19. Mike has the same spots for the NW guys he's had forever. Lunch time BBQ at the spaces. If you have stuff to sell bring it along. If you have a question PM stllookn (Mike) here via the board. https://67-72chevytrucks.com/vboard/...d.php?t=851291 |
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05-27-2016, 04:00 PM
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#7 |
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Registered User
Join Date: Sep 2012
Location: Idaho
Posts: 623
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Re: 3/4 axels vs 1/2
Guy down the road has a '79 or '80 c/30
Gonna go pay a visit with a tape measure
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'81 K20 Silverado , '99 Dodge Cummins 4x4, '05 Dodge Cummins 4x4, Pinstriping-Lettering-Specialty Painting |
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