hey, I just bought an 87rs and it doesnt have an RPM guage I was wondering if it would be hard to install one, any body have any advice.

thanks Saikali

 

as long as the wires are in the harness , it's a plug and play . if there is no wire in the harness (at the cluster i mean) you'll have to run a wire to the distibutor and that's about it. but i think they all have the same dash harness tach or no tach , so it should be a plug it it and go thing.

 

dude id run in to the distributor reguardless, who knows why theres none there in the first place.

 

If he has the gauges with the big fuel gauge it wont be plug and play. That would need a whole cluster to start.
If your adding an external tach then there will be empty spots on the fuse panel for power and then a good ground anywhere under the dash. The light in the tach depending on where you place it you can get from just about anywhere. Tap into the light from the hvac or if you have an automatic the shifter. Or if you get behind the cluster there will be a few grey wires. I memory serves me those are the dash lights. Also you can look for a white wire. Check it because that would be a tach lead. If not then you need to go through the firewall to the coils white wire.

 

i bought an autometer autogauge 3" something tach, its was $55. easy one wire to the tach, two hot wires for the light and the gauge, and a ground