blinker/fuel gauge issue??
The very first thing I would suspect is grounding problems right at the cluster. Do these still have two PC boards like my 67? If so, there's no reason to assume that both or either PC board is grounded.
Here's a laundry list of some of what was wrong with my 67
The harness connector pins were loose and broken at the PC board. Mine were so bad I abandoned them and soldered pigtails to the board traces, and used "Molex" style connectors
The spring contacts for the IVR were not making contact with the PC board. I soldered jumpers across
The gauge stud nuts were not making contact with the board. Loosen / tighten them several times and replace the nuts if you can
The IVR of course....replaced
The gauges themselves "might" be out of cal
And there is nothing except "accident" to insure that both PC boards are grounded to the cluster, and that the cluster is grounded. Attach a ground pigtail, and bolt to the column support.
The very first thing I would suspect is grounding problems right at the cluster. Do these still have two PC boards like my 67? If so, there's no reason to assume that both or either PC board is grounded.
Here's a laundry list of some of what was wrong with my 67
The harness connector pins were loose and broken at the PC board. Mine were so bad I abandoned them and soldered pigtails to the board traces, and used "Molex" style connectors
The spring contacts for the IVR were not making contact with the PC board. I soldered jumpers across
The gauge stud nuts were not making contact with the board. Loosen / tighten them several times and replace the nuts if you can
The IVR of course....replaced
The gauges themselves "might" be out of cal
And there is nothing except "accident" to insure that both PC boards are grounded to the cluster, and that the cluster is grounded. Attach a ground pigtail, and bolt to the column support.
