1971 Plymouth Road Runner Rallye Gauge Question

I have a question about the gauge cluster in 1971 fuselage Plymouth Roadrunners. In some of the gauge clusters I have seen there's always a speedometer far left, then to the right of that is sometimes a tach, and sometimes there's an oil gauge and fuel gauge in the area where the tach is.

So my question is, are both of these correct and the build sheet will tell you what the orientation of the gauge cluster is? Can someone help me out as I want to know what the deal is with these gauge sets and how to tell them apart. I've included photos both ways to explain what I'm talking about.

Thanks!!!!!!!

A tach was optional, so if a tach wasn't ordered, then the second one is what you got.

I believe a clock could go where the tach is in the 1st photo also.

No tic-toc-tachs in '71?

There are 3 options on 71/74 B bodies Rallye clusters

As you noticed, the standard rallye option which gets the big double meter at a side of the speedo and single gauges on the small openings

Then next one was the one with clock, using small double meters setup on smaller openings

Then the tach opction, same setup as the clock

The standard and the other ones are way diff between them. Diff housing, diff lenses mask and diff ( but speedo ) gauges. None of these parts are interchangeable. ALTHOUGH you can find on a standard Rallye cluster housing the casts for the other clusters.

Clock and tack clusters are the same, just change the clock or tach itself

No tictoctachs on these yeasr, ALTHOUGH some years ago, was being offered an aftermarket/repro tictoctach by some sellers.... it seems didn't get sucess and is not anymore available. I would like to have got it but didn't have the money on those years and wasn't a priority

Some other changes allong the years, like the top speed speedo mark, the high beams pilot light disposition and color, a diff lettering on 74 bezel, but nothing really important and makes not change in the diff setups optioned

Previous poster is correct. There were 3 options. Large Oil/Fuel gauge to the left of speedo is the standard Rallye cluster set up, I believe. The others with either the clock or the Tach were optional.

Usually Chargers SEs got the clock setup although was really part of the brougham package ( not really just because is an SE ), and 4 speeds cars got Tachs, however any of them was exclusive on those. I guess, Plymouths were something similar.

Original tachs are 7K rpms, and repro tachs are 8K