87-89 speedometer in a 90-93 what needs to be done to make it fit?

oldfox · Feb 2, 2011

Hi, Hey I would like to know if anyone has ever put a 87-89 speedometer
in a 90-93 fox? I thought I read somewhere that it could be done buy
grinding off some of the face or something but now I can't find it.
Anyone know or actually done it?
Not the cluster just the speedometer
Thanks Lee

Mustang5L5 · Feb 2, 2011

Are they both 140 mph speedos?

All you need to do is disassemble both clusters, pull the needle from the speedo and remove the two screws on the back and it will come right out. Just swap into the other cluster, and put the needle back.

You can also set the mileage by removing the rod that holds the odometer wheels and adjusting to correct mileage.

I did the same by putting a 90-93 140mph speedo in my 88. I needed a gauge face however

oldfox · Feb 2, 2011

Mustang5L5 said:
Are they both 140 mph speedos?

All you need to do is disassemble both clusters, pull the needle from the speedo and remove the two screws on the back and it will come right out. Just swap into the other cluster, and put the needle back.

You can also set the mileage by removing the rod that holds the odometer wheels and adjusting to correct mileage.

I did the same by putting a 90-93 140mph speedo in my 88. I needed a gauge face however

No the 87-89 speedometer is a 180mph and the one I have now is a 140
I was hoping that someone might know how to modify the 87-89 180mph speedometer
to fit in my 91

Mustang5L5 · Feb 2, 2011

Either do what I said, and then peel the face off carefully and transfer....or trim the plastic speedo frame to fit the 90-93 cluster.

oldfox · Feb 2, 2011

Mustang5L5 said:
Either do what I said, and then peel the face off carefully and transfer....or trim the plastic speedo frame to fit the 90-93 cluster.

Oh,,, I can just trim the face to fit? I thought I saw that some where
but I wasn't sure.

jz88vert · Jun 12, 2022

Mustang5L5 said:
Are they both 140 mph speedos?

All you need to do is disassemble both clusters, pull the needle from the speedo and remove the two screws on the back and it will come right out. Just swap into the other cluster, and put the needle back.

You can also set the mileage by removing the rod that holds the odometer wheels and adjusting to correct mileage.

I did the same by putting a 90-93 140mph speedo in my 88. I needed a gauge face however

Do u have to remove the stop pin and let needle fall straight down then install speedo mechanism and lift back up and replace pin or just leave pin in and do swap and replace needle in same spot. This parts confusing me and I dont wanna mess up the calibration

jz88vert · Jun 12, 2022

jz88vert said:
Do u have to remove the stop pin and let needle fall straight down then install speedo mechanism and lift back up and replace pin or just leave pin in and do swap and replace needle in same spot. This parts confusing me and I dont wanna mess up the calibration

Sorry I have 88gt with 85mph and my buddy gave me 140 cluster out of 93gt and I have 140 whiteface gauge layovers I ordered from lmr

Mustang5L5 · Jun 13, 2022

jz88vert said:
Do u have to remove the stop pin and let needle fall straight down then install speedo mechanism and lift back up and replace pin or just leave pin in and do swap and replace needle in same spot. This parts confusing me and I dont wanna mess up the calibration

Pull the needle stop. There's a tick mark right below the 0MPH mark.

This is a pic of a 90-93 speedo

With the needle stop out, the speedometer needle shoudl point to roughly this if you hold it in the upright orientation as if it was installed in the car. Once the needle is pointed here. Lift it up and install the stop.

87-89 speedometer in a 90-93 what needs to be done to make it fit?

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