New 3 point seat belts
Personally I will very rarely have people in the back seat of my car. I will have belts back there just in case though. I feel it's always going to be a minor inconvenience getting in the rear seat whichever way you have them mounted in any 2 door car. 2 door cars dont typically have a whole entourage of people with you driving somewhere. That's why theres 4 door cars. Safety is not convienent, unless its passive restraints like airbag. These shoulder belts with retractors make it more convienent than the OEM from the 60s was
Drewmac I understand why you want to mount them low, so it doesnt detract from that cool hardtop look with all the windows rolled down. I suppose that's why the factory made those funky 2 piece lap/shoulder belt setups with the double buckles for those years. They were inconvenient as heck to use. Myself I dont mind seeing the belt when the windows are rolled down. I am more concerned with my safety than the belt being hidden for the car to "look good". Heres a pic of another car with a setup like the one I will be putting on both cudas I have. TBH it looks like it belongs there. The belts even follow the seatback line, just like chrysler themselves could have designed it had the technology been present in 1968.