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04-10-2015, 03:02 PM
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#1 |
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Registered User
 
Join Date: Apr 2012
Location: Stillwater, Oklahoma
Posts: 874
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Leaf spring rear end swap confusion
I read a bunch of posts about swapping rear ends, but with all the variables I'm not clear on the answer for my application.
Will a leaf spring 12 bolt rear end from a 73 K/10 (1/2 ton) Blazer fit in a 67-72 leaf spring C/20 (3/4)? Fit without modifications is what I'm really asking.
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1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy |
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04-10-2015, 09:52 PM
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#2 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,714
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Re: Leaf spring rear end swap confusion
I think so. Should be the same 42.5" spring centers, but at least one of the shock mounts has to be redone either on the housing or the frame. Use your original parking brake cables.
But there will be some small modifications needed. Possibly conversion u-joint and/or longer driveshaft. Find a C10 rear from a 69-72 if you want a true bolt in.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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04-10-2015, 11:18 PM
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#3 | |
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Registered User
Join Date: Apr 2012
Location: Stillwater, Oklahoma
Posts: 874
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Re: Leaf spring rear end swap confusion
Quote:
__________________
1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy |
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04-10-2015, 11:23 PM
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#4 |
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Registered User
Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Re: Leaf spring rear end swap confusion
The other major issue, if it applies...is the 3/4 ton would have 8 bolt. 16" rims and the 73 1/2 ton diff. would definitely be a 6 bolt and might be a 15" rim....if any of this plays into your plans.
All Good Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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04-10-2015, 11:58 PM
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#5 | |
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Registered User
Join Date: Apr 2012
Location: Stillwater, Oklahoma
Posts: 874
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Re: Leaf spring rear end swap confusion
Quote:
__________________
1971 C/10 SWB, 15x8 Rallys, 4.5" X 7" static drop, C-notched, 350/350, 3.73 Posi. .........A 383 and Gear Vendors are on my bucket list. 1972 GMC 4X4 K1500 Survivor - Sold No matter what problems life throws at you, your time on Earth can be incredibly fulfilling and rewarding.....if you just lower your expectations. -Phil Dunphy |
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04-11-2015, 11:11 AM
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#6 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,714
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Re: Leaf spring rear end swap confusion
And the spring perches will be for 2 1/2" springs instead of 2 1/4", but that shouldn't have any real affect on the whole project. I've got a bed that I've always planned on building a camper trailer out of so look forward to future updates on your project.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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