I posted an article over a year ago (reposted a couple of times) on installing a voltmeter in place of the amp meter in a rallye dash. It was pretty straight forward. Some of the dodge vans/truck used gauges with the same orientation as the gauges in the rallye dash and they are 20 years newer. I'm not sure if you can find autometer, etc with the orientation you would need but if you can, go for it. It's not that hard. Good luck.