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11-11-2005, 11:47 PM
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#1 |
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Senior Member
Join Date: Jul 2003
Location: Mount Forest, Ontario, Canada
Posts: 978
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Swapping in 3/4 ton axles
I've got a 72 3/4 ton 4x4 pickup and am thinking about swapping the axles into the 71 Jimmy.
Anybody ever try this? Is it a direct bolt in or would some fabrication be required? Ron
__________________
72 Chevy C10 (rust repaired, starting body work) 72 GMC 3/4ton 4x4 72 Chevy C20 Suburban 38 Ford Tudor Humpback Sedan (from the darkside  )67 Pontiac Parisienne 55 Studebaker Commander 2dr Hardtop (Starliner) My Youtube channel with Video Updates! |
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11-12-2005, 08:22 AM
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#2 |
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Junk/Daily Driver Club
 
Join Date: Feb 2004
Location: Manheim, PA 17545
Posts: 253
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Re: Swapping in 3/4 ton axles
Should bolt rite in. Your high gearing might not be as good. HO72 4.10 at best.
Later Willis
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Daily Driver: 1970 C-20 400 sbc,sm-465,Dana 61 one ton SRW rear, 3.07 gears, locker.  There are three kinds of people: those who make things happen, those who watch things happen, and those who have no idea what happened! |
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11-12-2005, 08:27 AM
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#3 |
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The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,468
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Re: Swapping in 3/4 ton axles
 Several members here have done 3/4 ton, some even 1 ton 
__________________
Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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11-12-2005, 10:04 PM
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#4 |
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The Blazer King
Join Date: Sep 2000
Location: Valrico, Fl (Tampa)
Posts: 1,212
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Re: Swapping in 3/4 ton axles
Our years are a direct interchange. All of the 73+ fronts are direct as well. 73+ rears need the spring perches moved. I have a 73+ FF 14 bolt in mine.
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72 2wd Blazer. Its the superbichinest, megacoolinest, superflowinest. |
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11-12-2005, 10:23 PM
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#5 |
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Senior Member
Join Date: Jul 2003
Location: Mount Forest, Ontario, Canada
Posts: 978
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Re: Swapping in 3/4 ton axles
Thanks! Now I just have to decide if I want to do it.
Ron
__________________
72 Chevy C10 (rust repaired, starting body work) 72 GMC 3/4ton 4x4 72 Chevy C20 Suburban 38 Ford Tudor Humpback Sedan (from the darkside )67 Pontiac Parisienne 55 Studebaker Commander 2dr Hardtop (Starliner) My Youtube channel with Video Updates! |
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11-12-2005, 10:29 PM
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#6 | |
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The LuvShack Garage
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,468
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Re: Swapping in 3/4 ton axles
Quote:
BIGGER IS BETTER
__________________
Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T |
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11-13-2005, 02:25 PM
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#7 |
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Senior Member
Join Date: Jul 2003
Location: Mount Forest, Ontario, Canada
Posts: 978
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Re: Swapping in 3/4 ton axles
Yup!
__________________
72 Chevy C10 (rust repaired, starting body work) 72 GMC 3/4ton 4x4 72 Chevy C20 Suburban 38 Ford Tudor Humpback Sedan (from the darkside )67 Pontiac Parisienne 55 Studebaker Commander 2dr Hardtop (Starliner) My Youtube channel with Video Updates! |
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11-14-2005, 02:09 PM
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#8 |
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Junior Member
Join Date: Oct 2005
Location: Bakersfield, CA
Posts: 315
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Re: Swapping in 3/4 ton axles
Go for it. I did it, so it must be simple.
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11-14-2005, 02:31 PM
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#9 |
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Registered User
Join Date: Aug 2005
Location: Athens, GA
Posts: 12
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Re: Swapping in 3/4 ton axles
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www.clayharrison.com/truck/ '72 K5 "Georgia Red" Blazer (driver and dawg hauler) '72 Cheyenne Super C20 LWB (parts and projects) |
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11-14-2005, 02:39 PM
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#10 |
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SKINNY TIRES RULE!
Join Date: Sep 2001
Location: Bothell, WA
Posts: 11,038
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Re: Swapping in 3/4 ton axles
IF your going to be running big tires and going off-road a lot, go for it. You may have to make a different driveline (someone correct me if I'm wrong), but everything else should be straight forward. There are a ton of guys on CK5.com running 3/4 & 1 ton gear.
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bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L |
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11-18-2005, 01:01 PM
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#11 |
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The Crazy Kracka
Join Date: Dec 2003
Location: San Diego, Ca
Posts: 60
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Re: Swapping in 3/4 ton axles
The Brake components may also need to be changed, i.e. the Master Cylinder and the proportioning valve. There is a significant weight difference and clearance difference between a 12 bolt and a 14 bolt. If you don't care about that then you will be hard pressed to destroy the 3/4 ton equipment. I would do it if it were me.
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My goal in life is to be as good of a person as my dog already thinks I am. 68 GMC LWB 396 BBC Camper Special 72 Chevy Blazer 4x4 with 406 SBC 73 Dodge Dart Sport with 340 |
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