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I'm thinking about replacing my 70 GTO gauges with a set of rally gauges, rather than get an aftermarket gauge cluster to mount at the bottom of the dash to monitor oil pressure, water temp and voltage. Currently have the 140 mph speedo/idiot lights version, but have an in-dash tach.

Couple questions...how do you tell if a used set of rally gauges are for 1970? I see a set with a J12170 stamp, but not sure if that would be for 1971? The fonts are different...correct?

Also...is it possible to remove/replace the lens without damaging? I am assuming so, since the repops don't include the lens. Or is it possible to polish without distortion/removing? If not, thinking of swapping my lens onto the rally unit.

I'm further assuming individual gauges cannot be swapped out (ie, idiot lights for full rally) and that the only option for a non-operational rally set would be to have rebuilt? Does anyone do that?

Should I just stick with the OEM gauges I have and use an aftermarket cluster or is the wiring a pain?

I guess last question would be does anyone have a decent rally gauge unit that they are willing to part with for a 1970?

Thanks for the info/knowledge.