AR-5, r-154 Anybody actually done this

Yes it's been done with a R-154. You need an adaptor for the pilot bearing, you need to convert over to a Dakota hydraulic clutch, and you need a clutch disk to work with the Dakota clutch that's splined for the R154.

Some info here, this is a R154 behind a 273...
Slant Six Forum, :: View topic - 273 with a 5-speed in an RX-7

Here also
BritishV8 Forum: small block mopar, road of un-spoken

I think there's a thread here as well. Neither of the above links were for use in an A-body or even a mopar, both were mopar engine swaps into other stuff. But they cover everything for making the drivetrain work, just not the tunnel or crossmember stuff that might be needed.

***Edit***
Ok it wasn't here but over on Moparts. R154 into a '72 Dart behind a 340. Unfortunately it looks like a lot of the pictures aren't linked anymore.
340sb with 5 speed conversion? | Moparts Question and Answer | Moparts Forums

Yeah I was reading the last one last night. Even came up on the forum. Thanks a TON for the one about the Rx-7. That helped a lot. Now looking on is300 forums to see what people are doing when they want a manual as r-154 prices are $$$ and a cheap colorado trans can be had for $250 or less. Since these transmissions are very similar its a matter of trying to figure out what slave cylinder to use. Ar-5 is a internal salve and the r-154 is external. So its a matter of Dakota bellhousing, Dakota clutch, 143 tooth starter. Still learning stuff but I have a feeling I am going to ditch the a833 for a ar-5. Also if we do this I guess I will make a thread about it. That way people can do it.

I believe @Buschi340 has an R-154 behind a HEMI in his car. I myself am running an ax-15 from a Dakota behind the 5.9 magnum in my Duster but that's a little more straight forward since you can use all factory Ram/Dakota parts to hook everything up.

I will look it up. ax-15 is not a bad idea but would prefer something a little more sporty in the gearing. Ar-5 with our factory 2.74 is not bad. Its even better when you start running 245/40/15. That is our tire choice for the car. Just add a lsd and go.

*Edit*
Seems Buschi340 is the one from the moparts thread. Not to many people in Germany doing this kinda swap. So figure its the same guy.