New gauge cluster problems

[blakesocia]

So I bought a gauge cluster with tach out of a 77 manual dump truck from Dave on here. My truck is also a 77 but is auto. Tried installing it today and ran into a few snags. Maybe some of you can help me. Everything as far as gauges seem to be working except temp, which I believe is grounding out somewhere, and the tach, which just needs a new plug for the ignition coil. The bigger issue is that none of my cluster lights seems to be working right. For instance the blinkers don't work anymore, but when I press the brake the right blinker dash light comes on. Only thing I can think of is that the circuit doesn't match up to my stock circuit on my old cluster and it's getting confused. Any help would be appreciated!