Hi all I am a long time viewer of these forums, but first time poster.
I have never had to post before because I can usually find my solution, but this time I can't seem to find anything. Well I have a 66 mustang with modern after market gauges (would of loved to keep stock but previous owner butchered the wiring beyond repair) and I just wanted to know if I need the instrument cluster voltage regulator. My original one died so I just straight connected the gauges to the gauge feed on my ron francais fuse box. I removed the regulator when I got my new fuel gauge and sending unit because I had to wire that up anyway, but since then my gauges keep swinging back and forth real fast randomly and occasionally twitch in small sweeps. Tomorrow I am going to recheck grounds but I really didn't change those up so I suspect not having the regulator is the culprit. Sorry for long post but help is much appreciated