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View Full Version : 87 cluster vs 91 cluster


Kid Racer
06-16-2008, 10:48 AM
hey guys as many of u know i did a swap from 87 irocz to a 91 rs v8...will the 91 cluster work with 87 wiring and set up even tho it reads 110 on the speed and the 87 read 145

//<86TA>\\
06-16-2008, 08:56 PM
IIRC the 91 is an electric speedo and the 87 is cable driven.
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Fast92RS
06-16-2008, 09:11 PM
nope the 91 cluster will not work.

Slo86Bird
06-16-2008, 10:13 PM
on my 86 bird, i used a 91 cluster and the 86 had a 85mph speedo and the 91 had a 120 mph speedo and it swapped riteout and the speedo works as it should but thats a bird, idk about cameros.

Kid Racer
06-17-2008, 08:34 PM
Thanks guys I did some fab. and got my old dash to fit in there and my cluster so im all good now thanks alot lot. The cars not far from being on the road I would say sunday it will be all put together.. Thanks again...

Rich2279
06-19-2008, 07:56 AM
So, you were able to put the '91 cluster in an '87?

Kid Racer
06-19-2008, 11:33 AM
no the 87 went into a 91...

Tru2Chevy
06-19-2008, 10:34 PM
Did you swap the whole dash, or did you just ghetto-fab the old cluster into the 91 dash?

- Justin

Rich2279
06-20-2008, 06:03 AM
no the 87 went into a 91...


I'm trying to do the opposite (electronic into an '89).

Kid Racer
06-22-2008, 11:27 AM
nah i put the 87 dash in to

Tru2Chevy
06-22-2008, 04:12 PM
nah i put the 87 dash in to

That's cool.

- Justin

Rich2279
06-24-2008, 11:21 PM
I'm trying to do the opposite (electronic into an '89).

If possible I want to use a '91-'92 style dash, but keep the '89 cluster to avoid the hassle of the electonic cluster.

Rich2279
06-26-2008, 10:49 PM
Picked up a '91 dash yesterday. Removed my '89 dash today.

V
06-28-2008, 06:18 PM
im putting a 89 dash in my 85 which is all getting swapped into the 89 body

Batman
06-28-2008, 06:22 PM
Ummmmm wasn't the 89 dash electronic, or are you talking digital? I know mine was. Pretty sure the 91-92 dash is unique though

V
06-28-2008, 06:46 PM
91-92 camaros were electronic
86-92 birds were electronic

Rich2279
06-28-2008, 11:14 PM
Ummmmm wasn't the 89 dash electronic, or are you talking digital? I know mine was. Pretty sure the 91-92 dash is unique though

Yes, the '91-'92 Camaro dash is unique and different from the '89 Camaro. My '89 has the cable speedometer. I like the updated style of the '91-'92 dash, but I have to sort out the electronic speedometer.

V
06-28-2008, 11:36 PM
Yes, the '91-'92 Camaro dash is unique and different from the '89 Camaro. My '89 has the cable speedometer. I like the updated style of the '91-'92 dash, but I have to sort out the electronic speedometer.


you need a buffer box out of a 86-90 bird, it a yellow box with a bunch of wires and then you need the VSS. dont bother looking for a buffer box in a 91-92, they are incorporated inside the ecms on those.

Batman
06-29-2008, 10:38 AM
I have an 89 buffer box if you want it, car is about to get junked so speak now.

Rich2279
06-29-2008, 11:38 AM
This is behind the gauges or under the dash in the Firebirds? The local yard has several Firebirds so hopefully I can locate one.


you need a buffer box out of a 86-90 bird, it a yellow box with a bunch of wires and then you need the VSS. dont bother looking for a buffer box in a 91-92, they are incorporated inside the ecms on those.

V
06-29-2008, 04:24 PM
its been a while, i know its under the dash, not sure which side, its about 3x4".

Tru2Chevy
06-29-2008, 07:47 PM
its been a while, i know its under the dash, not sure which side, its about 3x4".

Yup, and bright yellow. about 1/2" to 3/4" tall. just a small circuit board inside.

- Justin

Rich2279
06-30-2008, 12:32 PM
you need a buffer box out of a 86-90 bird, it a yellow box with a bunch of wires and then you need the VSS. dont bother looking for a buffer box in a 91-92, they are incorporated inside the ecms on those.

There is a yellow box on this '90-'92 Camaro dash that I picked up @ the junk yard. Not sure what it is for. It's on the driver's side. :shrug:

V
06-30-2008, 02:45 PM
There is a yellow box on this '90-'92 Camaro dash that I picked up @ the junk yard. Not sure what it is for. It's on the driver's side. :shrug:


i'm gonna say thats for the airbag. 90-92 were speed density TPI systems that ran off the 730 ecm, the 3.1v6 also used the 730 just with a different chip. those car had the buffer in the 730, so i am almost positive the didnt have the part u need.

Batman
06-30-2008, 08:00 PM
The sensor is under the lower dash panel on the passenger side, right near the PCM