Thou I got the wrong coil (well, I had this one sitting around) requiring further modifications, it is possible to install a Mallory High Performance coil in a Ram :-)

Notes: Some mods (such as the lead connectors) required - When you cut off the old plug, make sure to leave some wire trailing just in case you have to re-use the old coil so you can still splice it! And, you need the connectors and a coil clamp as well.
Oh btw, the green cable is +, the black is -
In my case, I had to rebuild the coil wire itself and put another boot on it (they're different), but it works.

The old coil:


The finished product:

 

looks cool but why not turn the coil up? that would just get in my way lol

 

I think it needs to be upright..unless its epoxy filled, you will have an oil leak... asumming it's filled with oil anyways...

 

looks awesome!

 

msd coils have to be mouted upright...like steve said. you should look into that.

 

Well i dno, my '86 d-250 has a sideways flamethrower and that's how the OEM was mounted as well.
But you guys are correct, at least on the '95 the OEM was upright...

thou i was thinking about it, the bracket mounts are just like that and then the exhaust manifold is right there so the wires aren't taut enough to stay away from it if put sideways... Suppose I could use cable ties to make sure...
ahhhh if it goes bad, I'll check into it...
In the meantime, I'll keep the original in the truckbox by the tools (heheh).

Other notes:
I learned today it is a good idea to keep your used set of spark plug wires.
In case you need an end wire element or a boot, cauz I can't believe this but they don't sell those pieces!!!
And if you have the old wires, the end pieces are easy enough to pull off and re-install on a new one (such as if the new one has a wrong type, or if a new one breaks). Also good for lawnmowers and 2-cyclers when that crap breaks.

.......
Strangely I can't say for sure it increased power, thou it certainly didn't hurt.

 

Do you have any of the technical specs for that coil,
such as primary and secondary ohms of resistance,
turns ratio, inductance, etc?

In past posts some Ram owners have found that if the primary resistance is much lower than the 0.9 to 1.1 ohms of the stock factory coil, the circuit inside the PCM computer that fires the coil will die in a few thousand miles, and a new PCM will be needed.

 

hanks right.. picking a coil is pretty important, besdies just throwing a cheep one on,, and it does have to be mounted vertical, MSD only makes a few coils that can be mounted in multiple directions

 

I mounted my coil to the fire wall on the bracket that the ac condincer is on to get it away from the heat of the manifold and to shortend the plug wire to get optimum performance.

 

I don't agree with everything in this article
which appears to be a joint venture between
Hot Rod magazine and MSD,
but it is well worth a read:

http://www.hotrod.com/techarticles/ignition_coil_tech/