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#1 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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which year cab interchanges
Im having to replace the cab on my truck. It is a 84 model. Which years will interchange?
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#2 |
Registered User
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
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Re: which year cab interchanges
How direct do you want? Is your wiper control above the headlight switch or on the column, I don't remember if '83 or '84 was the last year for dash mounted... There are small details like those switches that move around a bit.
If it is on the dash, I don't know when it starts but up to '84. If your's is on the column then '84-'88. There may or may not be some bolt-in vs. welded tunnel differences in there as well.
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Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96 |
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#3 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
wipers are on the column. So basically 84 up?
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#4 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,288
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Re: which year cab interchanges
they are basically the same cab you can swap anything from 73-87 but you will have some additional work to do the older you go. I believe 84 up is the one with the column wipers.. the 81 up cab can be swapped in and just change the wiring harness over
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#5 |
Account Suspended
Join Date: Nov 2004
Location: Rhode Island/Vermont
Posts: 583
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Re: which year cab interchanges
It really repends on what you want to re-use from your old cab, and how much change-over if anything you want to deal with. 1984 was kind of an odd-year for the cabs....
Here is my understanding on the cab differences, with a little bit of grey areas an overlap mixed in. 1973-74 had a smaller windshield wiper switch in the dash Pre-1976 pickup cabs were lap belts versus shoulder belts, with the shoulder belts becoming an option in 1976, standard equipment in 1977. However, early shoulder belts had a different mounting points of attachment/linkage. Around 1977 gm changed the anti-corrosion treatment and added extra gaskets, etc to help resist rusting a little better, which is why 76-down trucks are more prone to weird cowl rusting near the hinge pillar among other spots In 1981 they went to the newer style front clip, with the slots for the hinge arms in the firewall. I believe that 1983 was the last year of the floor mounted dimmer switch as opposed to column mounted, and the same for the dash mounted wiper switch... I cannot recall which year the dash mounted wiper switch went away for certain. In 1984 they certainly had the column mounted dimmer switch and wiper switch, and it was the last year for the old style windshield wiper motor that dated back to the 1970s. 85-up used a unique wiper motor with different mounting attachment/linkage. 1987 will be wired up for an ecm due to the fuel injection coming into play. If you go with a HD R/V series cab off a cab/chassis model from 88-91 you aldo get into other wiring issues, changes in the speedometer type, and a 1.5 Dinn radio opening as opposed to shaft style... There are other minor things I left out, but, the big question is, how much do you want to swap over, re-use, etc... keep that in mind when selecting a replacement cab as far as how stripped out it is. Last edited by 79 silverado; 12-11-2013 at 04:26 PM. |
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#6 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
Would like to keep it as simple as possible. Also plan to re do the wiring hate was with a painless one.
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#7 |
Account Suspended
Join Date: Apr 2009
Location: hazard, ky
Posts: 1,674
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Re: which year cab interchanges
if you have all the parts and just need the metal any would work. i mean you going to have to take most of the interior and all anyway if you plan to paint it and all. best to get a 81 up though so you have places cut for the hood hinges.
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#8 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
My cab is trashed.... So I will be completely gutting my cab and painting
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#9 |
Account Suspended
Join Date: Apr 2009
Location: hazard, ky
Posts: 1,674
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Re: which year cab interchanges
then any would work then. all the other stuff is bolt in or out. the only thing is the hood hinges which is why i said 81 up but if you find a clean 80 back its still not a hard deal to make the later clip work.
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#10 |
Another Day, Another Dollar
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
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Re: which year cab interchanges
All of the small stuff is easy enough to work around:
Headlight switch location, wiper location, high beam switch etc. that can all be fixed with a little bit of light sheet metal switch. What you need to worry about is getting an 80's cab. 70's cabs have external hood hinges and it looks like a major PITA to sneak hinge holes into an 80's cab to run an 80's front clip. If you are running a 4wd and opt for a 2wd cab you are going to have to cut out and re-mount your old tranny hump. It can be bolted in if you leave enough space on the outsides.
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-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square" ![]() |
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#11 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
Alright sounds fairly simple enough and mine is a 2wd
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#12 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
Would a c20 cab work?
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#13 |
Registered User
Join Date: Dec 2010
Location: Pittsburgh, PA
Posts: 1,009
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Re: which year cab interchanges
Yes it will be identical as long as the tranny hump is the same.
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 ![]() |
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#14 |
Account Suspended
Join Date: Apr 2009
Location: hazard, ky
Posts: 1,674
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Re: which year cab interchanges
he can use a 4wd hump on a 2wd even
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#15 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
Thanks for all the info
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#16 |
Registered User
Join Date: Dec 2010
Location: Pittsburgh, PA
Posts: 1,009
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Re: which year cab interchanges
Not if he wants to keep his carpet
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 ![]() |
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#17 |
Registered User
Join Date: May 2011
Location: south mississippi
Posts: 177
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Re: which year cab interchanges
If I get new carpet just have to order for a 4wd?
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#18 |
Registered User
Join Date: Jan 2012
Location: Southern Indiana
Posts: 84
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Re: which year cab interchanges
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#19 |
Account Suspended
Join Date: Apr 2009
Location: hazard, ky
Posts: 1,674
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Re: which year cab interchanges
and plug the shifter hole (in the metal not the carpet) but it would work on a 2wd fine.
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