OEM Roof Rack PT278-35170 vs PT278-35170-CB?

I don't really want to be at work today so I figured I'd sit at my desk and look up where to get an OEM roof rack. The issue is I see these two part numbers:

$353 PT278-35170 Roof Rack (Double CAB), 1 Pack, Black

PT278-35170 and PT278-35170-CB. On my local dealer site they list the "-CB" number as the service, and the non-CB as the actual rack. But on parts websites I can find both part numbers for varying prices that can be shipped to me. You can't ship a service so now I'm confused.

I'd rather not spend $150-$200 on the wrong part number. Anyone have any insight as to which one is the correct one?

 

did u figure it out? i have both in my shopping cart n not sure which to pull the trigger on? i have a bare roof n in need of full kit to include hardware etc..