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#1 |
Registered User
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
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Frame differences?
I have a friend with a 70 c20 and he wants to convert it to 4x4 but it's very hard to find a 67-72 chevy 4wd frame for a fair price.
What I want to know is are the frames between a 70 c20 and a 76 k20 similar enough I can rob the spring hangers off this frame and put them on his? I know they are different wheelbase but the frames look very similar to the squarebody truck frames I'm familiar with.
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<Brandon> 1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works. ![]() 1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15 81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in 1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096 1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195 |
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#2 |
Senior Member
![]() Join Date: May 2017
Location: Dowagiac Michigan
Posts: 202
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Re: Frame differences?
I am in process of installing a set of 76 3/4 ton axles under my 67 k20
The differences I have found so far are with the spring perches on the corp 14 needing to be moved inboard for a narrower frame and the shock mounts moved to match the 67 That my 2 cent |
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#3 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Frame differences?
How about the hangers on a 2WD frame? Can they be added?
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#4 |
Senior Member
![]() Join Date: May 2017
Location: Dowagiac Michigan
Posts: 202
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Re: Frame differences?
Crawled under and this is what I came up w
This is a comparison of my c10 to my K20 frames Both are 28" at the front spring mount and 34" at the rear In the front 2 rivets need to be removed and holes reused to mount the spring bracket First pic For the rear mount of the front spring some reshaping of the side of the frame rail needs to be done to flatten it Pic 2&3 k20 Pic 4 c10 I now you are using a c20 frame but should be similar Hope this helps |
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#5 | |
Senior Member
![]() ![]() Join Date: Jan 2015
Location: Kearneysville Wv
Posts: 3,938
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Re: Frame differences?
Quote:
Cut the dimpled area out Last edited by Jeff's bowtie's; 06-20-2017 at 03:51 PM. |
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#6 |
Senior Member
![]() ![]() Join Date: Jan 2015
Location: Kearneysville Wv
Posts: 3,938
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Re: Frame differences?
Welded in a solid plate same thickness
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