The RCS10B-400 is a stock replacement designed to allow a dual exhaust system to be routed under the crossmember, allowing for easier header connection, while keeping the exhaust above the frame rails.?
This crossmember is designed for 2WD S10 Blazers with a horizontal frame shelf on each side of the vehicle. Refer to the product image to determine that your chassis has the same configuration.
Note: If your vehicle has a crossmember mounting pattern through the side of your frame rail, this crossmember will not work. Use the RCS10 instead.?