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Old 06-21-2018, 08:36 PM   #1
jocko
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91-94 instrument cluster retrofit into 88-90?

Has anyone done this - am thinking it may be a direct swap, not sure about the harness. I prefer 91-94 dash over the 88-90 (with those white sweepy follower things on the needles), but am looking at a nice 90 and wondering if a swap is a possibility. Thanks Pics below of the 88-90 type and the 91-94 type.
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Old 06-21-2018, 09:37 PM   #2
ChevyTech
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Re: 91-94 instrument cluster retrofit into 88-90?

1991 has the same connector on the back as 1988-1990 but the harness is pinned out slightly different.
To put a 1991 instrument panel in a 1988-1990 you need to:
Move A10 to A9, move A11 to A10, Move B15 to B11, then run a wire from the white tach lead wire at the ignition coil into the instrument panel connector terminal B15. 1991 was the first year the harness has a tachometer wire to the instrument panel.

1992-1994 have a separate DRAC module that would have to be wired in. The connector for the instrument panel is different.

Here is a recent thread on the swap;
http://67-72chevytrucks.com/vboard/s...d.php?t=764890
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Old 06-21-2018, 11:02 PM   #3
jocko
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Re: 91-94 instrument cluster retrofit into 88-90?

Great info, thanks very much!
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Old 06-22-2018, 02:41 PM   #4
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Re: 91-94 instrument cluster retrofit into 88-90?

You're welcome!
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For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
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Old 06-25-2018, 06:51 AM   #5
special-K
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Re: 91-94 instrument cluster retrofit into 88-90?

Good to know. Gotta have a cluster that's pleases the eyes.

Sorry I never got your answer from Jason. He's a bit "independent" about getting back sometimes. He's been known to aggravate me a little with that. Glad you got a definitive reply. It's doable!
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Old 06-27-2018, 04:42 PM   #6
diveplane
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Re: 91-94 instrument cluster retrofit into 88-90?

Quote:
Originally Posted by jocko View Post
Has anyone done this - am thinking it may be a direct swap, not sure about the harness. I prefer 91-94 dash over the 88-90 (with those white sweepy follower things on the needles), but am looking at a nice 90 and wondering if a swap is a possibility. Thanks Pics below of the 88-90 type and the 91-94 type.
never did like those moon gauges
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