[Mackin]

I wonder if the wire provisions are there but only because of the cluster used there is no gauge. Someone with a wire schematic on the Allison should be able to point you in the right direction.Then to find a electronic gauge

You would have to drill and bung the steel pan.I had mine done and sold it.You could look at a Mag hytec,they are predrilled.PML pans are not.