manual trans with 5.9 magnum

need help have 5.9 mag out of 98 dodge 4x4 have complete truck .putting it. n 71 duster was slant 6 3 speed on floor .what trans needed just a cruiser .would like to keep efi stock from truck if possible
I'm using an AX15 in my car behind a 5.2L with stock injection. It's been fine, but did require substantial tunnel mods. The torsion bar cross member had to be opened up and the sheetmetal redone. Details are on my blog www.dartslantsix.wordpress.com