1988-1991 Chevy Suburban/GMC Tahoe - Rear A/C Block Off Fittings1988 1991 Chevy Suburban GMC Tahoe Rear A C Block Off Fittings Can be installed on the following vehicles: CHEVROLET Suburban Used to Block off Rear A C, Standard #6 Male O Ring and #8 Female O Ring Fittings 1988 1991 Chevrolet Suburban and Tahoe 1988 1991 GMC Yukon and Yukon XL Specifications Product Condition: New 100% brand new and high quality. The product is the same size as the original part, and replacement is simple. One year warranty, shipped