gp dash wiring

[jeremyandthemonte]

hello all i am getting the wiring together for my cutlass and i have gp dash and harness and i also have a cutlass harness and i was wondering what all do i have to do is make the cutlass harness work with the gp gauges. My gauge pack has a clock so i am looking for either a rpm gauge or a whole new gauge pack

 

[Longroof79]

You'll also need the duct work behind the dash. The Pontiac duct work is different than the other G-body models.
I would suggest finding a wiring diagram for the Cutlass and one for the GP for cross reference.

To use the Cutlass wiring harness, you'll probably need the two plugs for the Pontiac harness. They'll have to be re-pinned to be compatible with the Olds.
Fortunately, GM uses the same color coded wiring. If you do a search on the site, you'll most likely find the information you need.