I know nothing about a 3000gt. But I do know, that if the cluster for instance on a Ram, does not fit in the newer dash, good luck trying to swap parts from an OBD1 system to an OBD2 system( vice versa)

 

I'm OBD2, but swapping from OBD1 to OBD2 usually has very little to do with a dash swap since the connector is probably tied into a separate harness. Of course, without having torn out my dash, I'm not sure what is tied into what.

If you can find out what wire does what on the 94-95 dodge diagnostic port, you can most likely just wire in the OBD2 port.

I'm just waiting for that 98+ V10 2500 to roll through the salvage auction at the right time and the right place. Right now, the closest one I have found it in Dallas, TX... and I'm not going that far for one.

 

You would have to transfer over the OBDI port. Just shuffling wires won't work.

I would also be concerned about the various electrical connectors..... for the dash, (which is going to be dramatically different...) headlight switch...... heater controls.... and lets not forget the overdrive switch also moved from the dash, to the end of the gear shift level.

Having both out, and side by side, so you can have a look at what ya got would give you a better idea of what's up.

 

Obd1 and 2 are so different it's not funny. Even the electrical plugs are different. Take the headlight switch for instance. 98 up the fogs are part of the headlight switch, older models have a separate switch. That alone, makes the swap not worth it. It's not a matter of just moving some wires around. The complete wire harness needs to be replaced,along with the PDC ,PCM (which will not work for the tranny)and fuse box by the driver door. Good luck to both of you, if you decide to attempt this.

 

+1.......... and I didn't just copy what HeyYou said, even though it took 15 minutes or so to hit the reply button. I'm doing other stuff. One of which is replacing the washer motor pump on my 2000.

 

I have power heated seats in my ram from a Crossfire and a trailer made from the back half of a 3000GT to match one of my 3000GT's. I'm down with making anything work

 

Well the up side to my truck when considering a swap like this is the lack of anything complicated, like an automatic transmission for instance. Shoot i don't even have a tilt column. If possible i would like to keep the older style gauge cluster, for the simplicity of a mechanical odometer and no digital anything. Wiring wise all i really need to change is the light switch, fan/AC/heater switches, and the cigarette lighter, the last of which which should plug right in. The passenger airbag and key switch don't have to do anything for all i care. I don't know a whole lot about these newfangled computer controlled wiring systems (This is the newest vehicle I've ever owned), but i don't understand why OBD1 vs OBD2 would affect heater and light switches.

 

Good luck, hope it works out for you. Don't forget to take pics and do a DIY on the swap.

 

The OBD version just doesn't matter. (as far as switches and such go.) What DOES matter is that the fog light switch moved, the headlight switch is different, the O/D Off switch moved, several of the vents moved. The heater controls moved, and all of the above are different, so, there is a high likelihood that the connectors are going to be different as well. With wiring diagrams from both vehicles, (available here. ) it may be doable, but, according to previous posts, the clusters are different shapes..... I don't know how the LED odometer is driven.... if it just pays attention to speedo vs. time, or what....

 

My foglights dont work now, if i really decide to care i will wire its own switch if it becomes a pain. I will probably not have time to start looking into this for a couple days but i will definitely update when i figure something out, whether success or failure.