Newbie - 2000 PreRunner TRD

I just picked this up a week ago with 135K miles on her. I'm interested in replacing the shocks. Is there a good website for confirming some part# information and maybe some pricing. Here's what I found:

Front Struts = Bilstein # W0133-1606230
Rear Shock (Driver-side) = Bilstein # W0133-1609802
Rear Shock (Pass-Side) = Bilstein # W0133-1609731

I found a craigslist ad for a replacement set (with 60K on them) for $110.

I just want to be sure they will fit my truck. A little worried about "4x4" in the listing.

http://sfbay.craigslist.org/sfc/pts/1756214944.html

Thanks for any feedback you might have.

 

Welcome Aboard from south Texas!! I don't have the answer but someone will chime in with it!!