Gauge Cluster Compatibility - Bad Odometer
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Car: 1987 Trans Am
Engine: 305 TPI
Gauge Cluster Compatibility - Bad Odometer
After getting my 87 T/A out on the road I found out that my odometer isnt working at all. My speedometer is working but not accurately. From what I have found the gear or small motor inside the cluster is likely bad causing the odo not to roll.
I have an extra cluster that I pulled from a parts car but when I took the outer covers off the tachometer says 6 cylinder (8000 RPM). I was looking to swap the whole cluster in to see if it would fix my odometer so I know what the issue is.
The speedometer in this cluster is 120 MPH and mine in the car is 140 MPH, can I swap out just the speedo & odometer into my cluster or will the needle be off on the 120?
I am not sure where the "conversion" happens in these clusters
I have an extra cluster that I pulled from a parts car but when I took the outer covers off the tachometer says 6 cylinder (8000 RPM). I was looking to swap the whole cluster in to see if it would fix my odometer so I know what the issue is.
The speedometer in this cluster is 120 MPH and mine in the car is 140 MPH, can I swap out just the speedo & odometer into my cluster or will the needle be off on the 120?
I am not sure where the "conversion" happens in these clusters
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Car: 1987 Trans Am
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Re: Gauge Cluster Compatibility - Bad Odometer
I believe I found the answer to my question, if I swap the circuit board above the speedo with it then it should work correctly. Is this correct?
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: Gauge Cluster Compatibility - Bad Odometer
Interesting topic. I've wondered what it would take to go from the 120MPH speedo to the 140MPH unit. I hope it's as easy as taking that little PC board along with the speedo.
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Re: Gauge Cluster Compatibility - Bad Odometer
Well I was hoping I could go ahead and answer your question DynoDave43 but I ended up figuring out that I could just swap the odometer so I did that and voila
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Re: Gauge Cluster Compatibility - Bad Odometer
One thing I did notice while I had it all apart is the pc board for the 120 MPH speedo was a lot smaller than the one for the 140 MPH, I dont know if it would make an actual difference for swapping the speedo but they are definitely different in size and layout.
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