Instrument Cluster Swap Problem

I'm hoping you guys can help me with this little problem since no other forum has been able to figure this out.

I have a 95' 2.2L 5spd that came without a OEM tach, I recently bought a new cluster off of a friend whom I trust. He used it for less than 2,000 miles before he was hit by a guy who ran a red light. The cluster is out of a 96 4.3L 5spd and worked fine in his truck. I took out my cluster and threw his in, everything works except the tachometer. It just hangs at 500rpm and never moves regardless of engine speed. The needle moves freely, and everything else works without a hitch. I know that the gauge will read 33% higher than it suppose to, but right now I'm trying to get it to work period.

Here is a video of what it does, should help explain it alot better than I ever could.
http://thesofafox.com/misc/Vehicles/instrumentcluster2.ASF

Sorry the quality is low, camera phone.

I had a Sunpro II tach in before this that worked and still works.. Am I missing something, I was told that it could click right in since the truck is wired from the factory for one; any help would be useful.

The truck iteself is almost ready for a V8 swap (meer weeks away) and i'm frustrated that something this small is already kicking me in the butt.

Thanks

Edit: Clear up the fact that the cluster did work in his truck even after the wreck.

Track the wire on the harness for the tach and wire it directly to the coil line in the engine compartment... The only diff on a lot of trucks w/out tach was the lack of that wire.

Track the wire on the harness for the tach and wire it directly to the coil line in the engine compartment... The only diff on a lot of trucks w/out tach was the lack of that wire.

You would not happen to have a wiring diagram for the instrument cluster connector in the dash? I have a wire on the coil already.

Thanks man

Found the connection, and wired it directly to the cluster, tach still does not work.. possibly just a bum cluster?

Found the connection, and wired it directly to the cluster, tach still does not work.. possibly just a bum cluster?

Sorry i cant help you with this. but I too would like to know how to put that cluster in my truck. I would also like to go back in time and tell the origional owner of my truck that if she doesnt select a tach on the options shes stupid. but cant do that. So if you wouldnt mind after you get this all figured out could you possibly tell me how you hooked it up. I would appreciate it very much. thanks dude. good luck.

Found the connection, and wired it directly to the cluster, tach still does not work.. possibly just a bum cluster?

Silly question, (don't take this wrong) but are you sure you got the right wire on the tach and/or the coil?

Yes, i'm 100% put my life on the line sure its hooked up properly.. I talked to a guy who lives down the street from me who has a 88 s10 with a 383 stroker in it and he told me something about a tach control module, i've never even heard about something like that, I thought all the pcb was in the cluster. I have no clue weither he is full of it or not.