Dumb exhaust question, and dumb seat question.

[Stew_Magoo]

Seats: What fit's what? I've done some sear5ching, but can't find a good answer. I need a back seat for my 1990 crew cab, is that a specific seat, or is it the same as a standard cab bench? Will a newer seat bolt in, front or rear? I may have a chance to pick up a brand new seat from a mid-late 90's standard cab, but don't want to get stuck with it if it won't fit. And waht about seat belts? My truck is a "Bonus Cab" so it never had anything behind the front seat.


Exhaust: 1990 crew cab, 4x4 with a 454. Has anyone used one of those "build your own duals" kits from summit (and a million other places)? I've done a little looking and am leery of them. Does any one know if Walker or anyone else still make the pipes so I could order factory style duals and just install that on my truck?