Resetting 1994 Mazda odometer for instrument cluster swap

[Nonstopmaximum]

Recently went to the junkyard and picked up a good looking instrument cluster out of a wrecked 94 B4000 to put in my regular 94 Ranger. Big problem is the B4000 odometer is at 119K and my Ranger is at 62K. Anyway to roll it back or at least get the faceplate off without destroying it? If not I figure i'll pull the speedo and odom block out of the cluster and put my Ranger one in its place.

 

[Nonstopmaximum]

After a pain in the butt installation it looks like I will have to inspect the PCB on the rear closer as the check engine light does not want to turn on during startup. All bulbs good so either bad contact or damaged trace.

 

[Shran]

You can spin the speedometer input with a drill but it will take a very long time to roll over. I imagine there is a way to disassemble the odometer and rearrange the numbers to read your mileage correctly but I have yet to be successful with that - I remember it being very difficult to get them all lined up correctly, the one I did it to years ago had problems getting stuck as it was rotating.

 

[scotts90ranger]

It's super simple to just swap the speedo/odo part of the cluster, pry the gauges out from the outside in (just held in by the 3-4 contacts on the back of them) and the speedo will literally fall out...

 

[gaz]

@Nonstopmaximum
Or just take 300 pictures of each cluster as is, then install the documented replacement component. If you are going to be honest about the new gauge cluster and support the truth with 600 digital pics, I can't find fault in that.

I have needed to replace the cluster in nearly every vehicle I've ever owned; I just document the information and explain it...has yet to be an issue

 

[HPMotors]

Recently went to the junkyard and picked up a good looking instrument cluster out of a wrecked 94 B4000 to put in my regular 94 Ranger. Big problem is the B4000 odometer is at 119K and my Ranger is at 62K. Anyway to roll it back or at least get the faceplate off without destroying it? If not I figure i'll pull the speedo and odom block out of the cluster and put my Ranger one in its place.

Not a Ranger cluster, but we have reset mechanical odometers by disassembling them. Mainly done this on Old Miatas that we put a new engine in. Odometer is reset to all zeroes as some customers like this as a reminder of where their money went. Of course, one customer, who bought his 1990 Miata new, wanted his to stay at 304,624 miles