'70 Gauges installed in a June Build '72
 

I'm converting my later build '72 LeMans to '70 Rally guages and tach. I've read about the wire swap (5 and 7) and of course the sending units. This car has the seat belt warning and I've heard it makes this more difficult. I also have one of the aftermarket tachs and would like to know how to hook it up. It did not come with a harness (used) so I'm considering calling our host to see if I can purchase one.

There was an old post referenced in 2004 but it is not a good link anymore.
http://forums.performanceyears.com/g...322#8226040322

Any and all help is appreciated especially if someone has a step by step for a '72

Thanks guys!
Ponchjoe

In '04, I helped someone named Timmie Bowman. This was the last E-mail I received...

Re:
I hope this is not too confusing...

Step 1: Disconnect negative battery cable.

Step 2: Find connector that plug into the gauge cluster. Locate numbers on plastic piece.

Step 3: Wire in position 1 is for seat belt light (don't know color), remove from slot for now.

Step 4: Wire in position 2 (maybe a light green) is to be moved to position 1.

Step 5: Wire in position 3 (maybe a dark blue, 1 or 2 wires together) is to be moved to position 2.

Step 6: Wire removed from position 1 can be placed in position 3 or taped up, so it won't short out.

Step 7: Wire from position 5 (green), remove from slot for now.

Step 8: Wire in position 6 (Dk. Brown) is to moved to position 5.

Step 9: Wire removed from position 5 can be placed in position 6.

Step 10: Reconnect negative battery cable.

Also note that the unit must be grounded if checking to see if it's working before buttoning it all back up.

Let me know if this does or doesn't work.

HFR,

Thanks. Now if someone can post the wiring diagram I might be set.