1991 GMC Topkick Wind Deflectors
- AVS®In-Channel Ventshade™ Polished Front Window DeflectorsGMC C5000 Topkick / C6000 Topkick 1991, In-Channel Ventshade™ Polished Front Window Deflectors by AVS®. 2 Pieces. Material: Stainless Steel. These are the direct descendants of the original AVS product invented in 1935. Very simply,...Allows fresh air in while keeping outFresh air circulation removes stale air and odors$49.99