Like I need another project, I know, but this is gonna be a VERY slow project, infact due to what I have in parts so far, I can only do the interior, and if I get a front bumper I can do the body.
When you deceided you wanted a GMC Sport truck you were given 1 choice with 3 sub choices, all where short wheelbase, you had stepside 4x2, wideside 4x2 and wideside 4x4.
All models featured body color grille, silver painted bumpers, red stripeing on bumpers and body sides, Aluminum wheels and Sierra ST decals on doors and tailgate, and fog lamps.
Your Sierra ST was available in only 3 color combinations Onyx Black, Catalina Blue, and Crimson Red upper body, all with Quicksilver lower body color.
I like the color black and painting it, so I went with Onyx black.
Of course my truck will have a 350 and a 4 spd automatic.
being stripped
'91 Brochure
EDIT:I fixed the grille holes since that picture was taken.