The cab differences are between A/C equipped or not.
For your truck, I'd stick to '96-'99, just because.
Whereabouts are you in Canada?
No matter where you are in the country, a cab from Arizona is gonna cost an arm & a leg in just shipping alone. Plus duty. Plus taxes. Just for my own piece of mind, I'd be putting some kind of shipping damage insurance on it, too. More bucks.
Out here on the West Coast, rust-free cabs are not all that uncommon.
I haven't been to any of the local wreckers lately but these three usually have a pretty good selection of 400 stuff.
IIRC, all three do ship large parts.
These guys specialize in trucks, & mainly GM.
I bought a clean rust-free box from them & they delivered it right to the shop door. No extra charge, but then, I am local.
Good guys to deal with.
Two-man operation. Sometimes both are out in the yard so have patience when calling.
- Action Auto Wrecking.
10559 120st. Surrey, B.C. V3V 4G4
604-584-6444.
IIRC, new owners since I last visited a while ago.
Huge yard. Decent selection of 400's, although with the new owners they may have moved on to more recent vehicles.
- Stave Falls Auto Wrecking.
29989 Dewdney Trunk Rd Mission, BC, V4S 1B7
604-462-7000.
My 'usual'. Several 400's last time I was there, & they're pretty good at keeping that inventory supplied.
Usually at least a dozen or more at any one time.
BC's largest Auto/truck recycler.
- Empire Auto Recycled Auto & Truck Parts.
1210 Sumas Way. Abbotsford.
1-800-661-5633.
604-864-8856.