Here we go

I'm putting a 5.7 Hemi in my 70 Duster also, and I had a 70 Duster in high school. Talk about 6 degrees of Kevin Bacon....lol. I'm going to use a 545RFE out of an 07 Hemi Durango. If you want to use that 545 that you have in the 4WD Durango, you can buy a tailshaft housing from Street & Performance to convert it to a slip yoke. All you have to do is unbolt the transfer case, and bolt the tailshaft housing on. Good luck with your Duster, and Orange sounds good. I'm gonna paint mine Limelight Green, with a black vinyl top. \\:D/