Please help me make these fit!!!

are they 2 1/8" tubes?
are they under chassis headers for an a-body?
YES pics would be awesome! would it be too much to ask for a part #?

Thanks,

Gary

looking for a part number but heres a pic, i do believe there 2 1/8 cant find the pic i had of them b4 i installed them, and dont mind the fender cut outs P. O. did that hack job it can be done alot neater

mopar 010.jpg

mopar 024.jpg