nope, it wouldnt work.....if the 320 shares the same block as the 325 then the motor/tranny sit on a 20 degree angle to the right. the problem is the getrag 240 is made for the m42 engine that sits 30 degrees to the right so the tranny wouldnt be seated properly and the linkage wouldnt be straight.
so if you would like to sell that tranny to me

gimme a shout.