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Old 04-23-2013, 09:31 AM   #1
86c20
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85 to 88 cab

ok so i got a 88 cab to replace the one on my wrecker. what i would like to know is what is needed to be changed? the 88 is wired for tbi and i have a carb so i know i have to change some of that around but how much? can i leve the comp or do i need to change the wire harness?

thanks guys. mike
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Old 04-23-2013, 10:22 PM   #2
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Re: 85 to 88 cab

anyone???
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Old 04-23-2013, 10:46 PM   #3
Rollinsqrbdy
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Re: 85 to 88 cab

85 and 88 are two different body styles.
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Old 04-23-2013, 11:30 PM   #4
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Re: 85 to 88 cab

Quote:
Originally Posted by Rollinsqrbdy View Post
85 and 88 are two different body styles.
that would be correct if it is a C/K Model but from 88 to 91 there was also the R/V models so he could have one of them.
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Old 04-24-2013, 01:11 AM   #5
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Re: 85 to 88 cab

its one ton to one ton. not the new body. forgot all about that lol. so yea it would be a r/v cab.
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1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph
1985 k30 "the ice cream truck from hell" no rust az truck
197-8??? c30 "ramp truck" 454
1978 monte carlo 350 350th with 2.73 gears. no rust. sc car
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Old 04-24-2013, 07:43 AM   #6
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Re: 85 to 88 cab

Use the old wiring harness, less problems that way
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Old 04-24-2013, 09:30 AM   #7
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Re: 85 to 88 cab

can i just use my old engine harness? cause my cab harness is shot to hell. also can i just take the fuse block apart to seperat the frame harness or do i have to cut and splice all the wires?
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1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph
1985 k30 "the ice cream truck from hell" no rust az truck
197-8??? c30 "ramp truck" 454
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Old 04-24-2013, 09:42 AM   #8
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Re: 85 to 88 cab

If you're taking the fuse block apart best to get a factory wiring schematic, the 2 fuse blocks are not exactly the same
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