85 cab swap
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Lead Driver
Joined: Mar 2006
Posts: 5,098
Likes: 1,504
From: western SD
85 cab swap
My 85 has had a hard life. I originally bought it as a parts truck, but started to fix it up. Anyway, the cab is suffering from body cancer, and I have a cancer free 86 cab that lived its life as a gasser with a injected 302 with an auto tranny. My question is how much of the wireing harness would be the same on the 86 gasser cab as the 85 with the 6.9?
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
I changed the wiring harness in an 81 a few years ago and it was pretty much one piece from the headlights back, so unless things changed between 81 and 85 you will have to change it all. It wasn't a bad job though.
Elder User
Joined: Oct 2002
Posts: 516
Likes: 1
From: La Crosse, WI
I did a swap last summer where I pulled the diesel cab and harness out, installed a gasser cab, pulled that harness out and put the diesel one back in. It was a 2 day job start to finish. I'd give it a 5/10....not very hard.
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Lead Driver
Joined: Mar 2006
Posts: 5,098
Likes: 1,504
From: western SD
The 85 lives with a ""new"cab. You guys were right the wiring harness from the fuse box to the headlights needed to be swapped out. Thanks for the info. I can't beleive the difference the 86 cab made, but with no rust holes to let all the air in it should be a lot quieter! Tom
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Lead Driver
Joined: Mar 2006
Posts: 5,098
Likes: 1,504
From: western SD
Ya, two of my sons did the swap. My youngest drives the 85, and thought the multi colors from different body panels, and the rust was tacky. And we had a couple of free days to kill. On a side note the fuel selector switch in the cab is different on a 86 gasser and the 85 diesel. Had to put the 85 switch back in.
