98 Silverado seat covers

[Latech15]

I picked up a 60/40 bench seat from a 1998 Silverado that is in relatively good shape. I think the install/modification will be straight forward, but the seats could really need new covers. I like the factory materials, but I’ll be darned if I can find where I can get some. It seems like seat covers are available for nearly every model except this one

Any help would be appreciated.

For clarification, I am talking about recovering with the factory upholstery. Not a cover - per say.