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Old 08-10-2010, 11:38 PM   #1
WHITE-NOISE
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71 body on 68 frame questions

im in process of swapping my 71 k20 body onto the 68 k20 frame i have, my plans with this truck are to be competing in tuga truck pulls and i was lookin into about a 4inch lift. but alot of talkin with some buddys of mine that have built these trucks have told me that lifting a 68 truck is a nightmare... im wondering what is the problem with it is and what all im gonna have to do to make will, also im wanting to run 4 inch lift springs front and rear, no blocks.. thanks!!
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Old 08-11-2010, 10:28 PM   #2
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Re: 71 body on 68 frame questions

bump...anyone????
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Old 08-11-2010, 10:40 PM   #3
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Re: 71 body on 68 frame questions

im not completely sure but i think the 68 has narrower springs. any particular reason you are swapping to the older frame?
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Old 08-11-2010, 10:41 PM   #4
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Re: 71 body on 68 frame questions

68 frame has longer rear springs, your better off with a shackle flip. Also the front axle is drum, closed knuckle so finding parts is near impossible. Other than that there are small differences but you shouldn't have much issue.
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Old 08-12-2010, 04:58 PM   #5
WHITE-NOISE
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Re: 71 body on 68 frame questions

well im throwing a 14bolt and a 60 under it, and the frame on the 71 is in rough shape

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Old 08-14-2010, 07:38 PM   #6
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Re: 71 body on 68 frame questions

Just the set up I have. 71 cab on a 68 frame with D60 and 14 bolt.
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Old 08-17-2010, 10:28 PM   #7
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Re: 71 body on 68 frame questions

Not really a big deal if the lift uses rear blocks. I assume you will be running traction bars so axle wrap due to the blocks will not be an issue. I run a 68 k-20 frame with the 69-72 4 inch lift (front springs and rear blocks) and it works fine. The 68 rear springs are 56" long and are wider at the eyes than the 69-72 versions.
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