Installing the 383 in my 75 Duster

...have you considered installing it as an assembly on the k-member from the bottom? There's a few folks on here proclaiming how much easier it is, as long as you have the right tools. I know I'm strongly thinking about it for my Scamp when it comes around to swapping it out.

big time !

Up goes the front...everything slides in....you can do it w/o the suspension..drop the front down...I have TTis and I have maybe a 1/8th of an inch clearance in some areas.. It was so easy, we did it twice in 2 days...fun :)