Is there an online source for parts manuals that will allow me to find numbers for the parts I need ?

 

I'd check out Ed The Parts Guy who advertisess here----I've used their site a few times for purchases.

Mostly though I'll call the local Stealership and simply ask because so many part numbers are superseded or dependent upon the VIN these days. Often times dealers are the only really reliable source of part numbers and availablity for OEM.