I think that was a transition between the new body style and old.
I've screw myself many times with this. Not so sure on the GMC, but the sister chevy was a split year. 5.7 (old) k1500 vs 5.3 (New)Silverado.
Ain't life difficult enough wothout the need to track down info?
Saturday, October 24th, 2009 AT 4:50 PM