I've used Fed Ex Ground, UPS, Greyhound bus and Fed Ex Freight for car parts including sending a driver side door for a 1965 Dart 270 two door hardtop in a windshield box that I got for free from a local body shop
I ship it to a guy up in Canada by Greyhound to a small town in either MI or IL, CRS.
I used a bunch of small empty cardboard boxes I had to act as insulators in the box between the door and big box on both sides to keep it from moving around, that worked well
![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
Shop around to get the best rate and best shipping company
![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)