who has the best full frame rails. I see diffrent prices on them. not looking for the best price, just a set that fits. I have a new full floor, trunk and tail panel in it.

Got my 2 full frame rails off Ebay from Tamaraz. Had no fitment issues that I didn't consider normal. No regrets.

However I did NOT do full floor replacements like you are planning, I did piecemeal of smaller floor parts and patch panels, and I kept as much of my original sheetmetal as I could. I've always found that smaller parts are MUCH easier to "massage" into place when needed...so that may have masked any major frame rail fitment issues. Whether those rails will match up with whatever floors you bought I have no idea. So it might be wise for you to stick with the same mfr as your floors.

Frankly I doubt you have very many choices in manufacturers...and I don't have any idea who made the Tamaraz rails. I'll suspect there are a lot of sellers all selling the same parts.

the floor and trunk was rotton. it has new floors , inner /outer tail panels, wheel house's & full quarters with new trunk drops. new full doors and GM NOS fenders.

floor / trunk are tacked in. quarters and tail is on. just need the frame rails tacked in so I can put it on my rotisserie

I dont like the look of piecing metal in (if your not going to make it look like it was never replaced. (welded/ ground from both sides.)

thanks for the info, I to was looking at that set of rails on epay

Yes, there are one maybe two suppliers of any of the parts.