goody brought up a very good point. these cars had a crappy panel fit/gap when new, so unless your car is a twisted, smashed hulk, install the connectors. when the car is ready for quarter, door, and trunk lid fitment, you may need additional slicing and metal addition/removal to get the gaps to your satisfaction. then the same thing applies to fitting the front clip. don't feel bad. it's only time and money. when my one buddy built his 55 chevy [yes i know it's not a mopar, but body work is body work], you wouldn't believe the tricks we did to get the trunk lid and tail lights to fit perfectly. there was cuts, slices, heating, pushing, and more involved. same happened with the doors and front fenders. we even rigged up a mid-evil device to actually bend the whole trunk lid in two different directions to get the curvature right to fit the crown of the quarter panels, both of which were different. after that, metal was added to several places on the lid edge, and the opening was sliced and moved around to get the PERFECT fitment. granted, this is a show car, and if something were to get damaged on the rear of this car, a stock panel would require much work to fit correctly [using his standards]. and this was on a documented, two owner, granny driven, rust free, non bumped/crashed car. your results may vary, and you may be satisfied with how the gaps turn out without all this additional work, but there is a very good reason some cars have perfect panel fitment and others do not. it's just time and effort expended. no matter the vehicle brand, i can point out flaws in panel fitment and suggest ways to make it better. will i go through that effort on my junk ? absolutely not ! and i will think your car is nice when done and applaud the effort you took to get it to where it is ! but being around body guys for 50+ years, especially experts in there field and watching them work, things just kind of rub off. you will do good on your project.