What is the deal with different front cab mounts

[M-100]

I see two different cab mounts offered. One is one piece the other seems to be two pieces welded together is one better than the other or are they both ok. Also I'm sure there is a good write up on here for replacing floor pans and cab mounts but i can't find it . If someone could point me in the right direction it would be greatly appreciated. Thanks.....

[fordman]

The one piece ones are cheap Chinese made. The two piece are the original made pieces. Dennis carpenter sells the good original two piece type.

[Ranchero50]

Ditto. Heck, they are all probably Chinese. Single layers I suspect will collapse easier vs. pinch welded 2 piece units. I don't think either is as strong as OEM ones. Dentsides fit if you can find a good set.