Advice for Stewart Warner oil gauge please

[CJ7JEEP1979]

I picked my Jeep up from the shop today and everything is good to go but I need to replace my oil pressure gauge. It is pegged at 100 and when they hooked up a mechanical gauge under the hood the oil pressure is perfect and where it should be. They suggested I replace the stock electrical gauge with a mechanical one. I have come across Stewart Warner and from what I have read they are among the best. I simply do not know which one to get though. They seem to come in different sizes and mention not including the hose kit for it. Could someone help me with what I need to get please? The shop is going to put it on at no charge for me.

I have a 1979 CJ7 with a AMC 304 and t18a 4 speed. I am looking for something that will fit the stock hole in the dash. Is mechanical better than electric? My budget is no more than $100 for the gauge and most Warner gauges I have found are in the 50-60 dollar range.

 

[Basod]

Go mechanical, Autometer 2421 matches the gauge style and includes nylon tubing kit.
You can upgrade to copper tubing kit for another $12-15

 

[Lumpy Grits]

Been run'n S&W in my 7 for 30+ yrs.
X2 on mechanical!
Gary

 

[CJ7JEEP1979]

Thank you for the replies so far. What model Stewart Warner should I get that will fit in the dash as a drop in replacement for the oem gauge? I do not want to add a pod or make the hole bigger.

 

[Mrpeter63]

You need a 2 inch gauge or some list them as 2 1/16.... Something along the lines of this one... https://www.stewartwarner.com/product/oil-pressure-gauge-pn-82322/