What are these rated? If you can tell..

[61_FL_Apache]

I bought these bags from my trucks PO. He said they were rated between 2500-2600#. There are no markings in any bag to show that. The first one is a 7" bag. The second and third pics are from a 6" bag from airbagit.com. There is a number on the 6" bag.

7"bag


6"bag




If these have an equal rating, which is the better size to use in front and rear? I am not doing any frame mods or notching to install the bags. The bags will go in the original coil spring locations.

Thanks for your help.