i took these off 2 different cars in salvage yards. One looks like just overlays and a simple plug and play. The other one has 2 wires coming off of it. I looked for some type of control box but someone had already ripped the interior apart. I want to put one of them in my sons car but I need to know who made the one with the wires to see if I can just buy the controller. Any info would help. Thanks in advance.Oh, and also, how do I put the mileage odometer to match my car?!

You can remove the odometer very easily and either swap or reset them.

The 85mph unit is from a 4 cylinder. The tach would read incorrectly if installed in a V6. I dont know if the 84 pod is different but that may be the reason for the 2 wires?

You need an inverter to power the reverse flow gauges. Here is one on eBay.

I believe the ones on the top are guages from Speedhut. I put ones in my car that look similar. I don't think they make them anymore. The ones in the second picture are EBay white guage faces.

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Red 1988 GT under restoration!

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Usually Speedhut puts their logo on their faces. Anyway, I agree. I have both Speedhut and white decal faces. The Speedhut ones have both power & a color control. They can be wired into the dimmer, also. There should also be an overlay for the AUX gauges.

The 85MPH overlays are not from a 4-cyl. They also had AUX gauges. The 4-cyl gauges had all the gauges built into that unit. SE's had the V-6 & an 85MPH cluster.

quote Originally posted by tshark: The 85MPH overlays are not from a 4-cyl. They also had AUX gauges. The 4-cyl gauges had all the gauges built into that unit. SE's had the V-6 & an 85MPH cluster.

I made my analysis based upon the redline of the tach and the location of the oil pressure gauge at the bottom of the tach. 4 cylinders redline hash marks start at 4500 rpm. All V6 tachs start at 5500. The oil pressure gauge is in the tach on the 85GT and 85SE V6, but the tach redline is the giveaway. His 85 mph instrument pod is from a 4-cylinder. 4-cylinders never had auxiliary gauges, even the 86 and 87SE 4-cylinders had 85mph gauges with all gauges in the main pod.

[This message has been edited by fierofool (edited 03-24-2016).]

OK so the top pic is for a v6 and I need that universal power inverter.
And the second pic will plug right in to my son's 84.
Do I have that correct?!

The second one will plug into the 84. I'm not familiar with anything needing a power inverter so I can't answer the question about the first one. Generally the gauge pods are interchangeable, except the tach from the 4-cylinder will read 50% higher when installed in a V6 and the V6 tach will read 33% lower when installed in a 4-cylinder. You can swap out the tachs up to the 86 models. I believe they went to backlighted instruments in 87. Prior to that, I think they were all lighted by reflection to the front.