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.
For a proper fit with this transmission, the GF-GMATM Transmission Mount is included.
If your vehicle has a crossmember mounting pattern through the side of your frame rail, this crossmember will not work. Use the RCS-10-8L90 instead.