I ahve a 91 ish chevy grile on my 88 with the corosponding headligh and signals , what all do I need to go to the 94+ gmc grille , I need the grillle and the lower filler , what else???

Check to make sure you have the right headlight and turnsignal lights and side markers, there is a difference in these. Also along with the filler piece, the corner pieces should be replaced, they are different in design. I have heard that they can be trimmed to fit from the older truck, but other shops say that is not true.

There are some outlets out there that sells these kits in a complete form.

my head lights worked but I need new signals and corners , now is a good time to upgrade to clear stuff I suppose , I have the griller and a billet insert so Ive gotta go find the filler and corner peices now too , thanks a bunch