PDCCD

Evening all,
I'm trying to find replacement front seat belts for my 98 4runner. It appears there's a few different part numbers, even within the same colors (grey,blue, oak). Can anyone figure out why? Is it safe to assume that any seatbelt 99.5-2002 from a 4runner would work? Does anyone know of any changes that would matter?

Thanks for any input. This is probably my first priority to repair in my truck as the current ones have been chewed through by previous owners dog and are not safe, but they're hard to find for some reason.

Pete