[Double A]

On a '68 LeMans, I've got idiot lights with a Rallye Clock (strange?). Aside from switching out the sensors, what would need to be done to install a Rallye gauge setup and have it function correctly? I guess the correct printed circuit would be needed, but what else in the way of harness, etc.? I'd rather keep the clock and go with an aftermarket tach...

[Double A]

On a '68 LeMans, I've got idiot lights with a Rallye Clock (strange?). Aside from switching out the sensors, what would need to be done to install a Rallye gauge setup and have it function correctly? I guess the correct printed circuit would be needed, but what else in the way of harness, etc.? I'd rather keep the clock and go with an aftermarket tach...

[Ccass]

First off you need a Rally gauge cluster with the original circuit board in tact. You need to swap the #5(tan) wire and the #7 brown wire at the back of the guages. On 68's, you must also cut 1 wire and I forget which one. That's it.

p.s. Green wire goes to temp sender, dark blue goes to oil sender.

[mike nixon]

Note ,this procedure is the same up until 72. I've not done any of the later models to know if they're the same or not.Also the light/rally clock is a fairly common thing. I've owned several pontiacs with this combo. mike