LT Sport SN#100000000138-230 For PONTIAC MONTANA/VIBE Cross Bars Aluminum Rooftop Cargo Roof Rack Fit 97 98 99 00 01 02 03 04 Oldsmobile Silhouette Packing Included: Set of two Aluminum Roof Rack Simple and Easy Installation. Install & Remove in Minutes. Adjustable Clamps for Desirable Length. Professional Install is always requested: Caution: This item only fit vehicle roof rail tower distance is 36" to 44" Does Not Fit Flush Roof Rails.