Thanks for your replys Gents.
I've now amended my want to the GMC emblem only.
I'm not looking to do a 100% accurate replica of my truck, so dont want a full on scratch build project (& my scratch skill are real bad lol). If I can modify the Chevy grill ie black out the centre & ad the GMC badge, then that will be good enough.
I wasnt sure the size of the black part of the Somona, so wondered if it would work for the 'infill' on my Chevy grill ? As far as I'm aware (but over to you guys) the Somona kit was the only one that had the 'GMC' as a separate part.
From what I understand (& this is my 1st 1;1 pickup) the 99-01 Chevy / GMC trucks had very similar front ends. The revised 02 on models had more of a difference between the brands.
I always try to build a 1;25 of my 1;1's, the Revell 99 stock Silverado kit is the closest thing to start with.