Who makes the better product ? Recommendation as to were to buy? Thanks.

If you want light weight, Goodmark is the way to go ... its 2/3 the thickness of stock sheet metal !! Does Dynacorn even make Mopar stuff ?!?!?

Thanks, Yes they make some stuff. not looking for light weight, It is the frame rail that I need for a very daily driver convertible. Just want to put what is best in it.

Look for a good used piece would be my suggestion on a rail

moparmarks might have something

What rail and what are you looking for?

AMD hands down. Built an entire 70 Charger with their stuff and the quality was awesome. I would not use a used frame rail section if AMD makes it new. Used rails are still 50 year old parts and subject to fatigue.

We just installed a Dynacorn back half for an E-body. This is the trunk floor, frame rails, shock cross member, torque boxes, and back seat back all in one pre-assembled piece. essentially everything from the rear floor pan to the bumper. It fit very well, saved a bunch of time, and was a lot cheaper than the individual pieces. I've been using AMD for the rest of the parts. The Goodmark and brand-x stuff I've handled don't compare well to the AMD.