2003 TO A 2010 XL Denali hitch receiver drop

[LuSe4]

My boss just traded in his completely stock 2003 Denali XL for a 2010 Denali XL. As most of you know, the reciever hitch has to have more drop with the NNBS vs. the NBS. Can anyone tell me what the height difference is between the two hitches? He is trying not to "trial and error" his way through this (because his boat trailer is in storage).
Thanks!

 

[bryanfeelsgood]

I have a 5 1/4" drop hitch on my nnbs Tahoe. The 2" drop was not even close to low enough.