1982-2005 S10 Blazer Crossmember 700R4Fits Models: 2WD S10 Blazer and S15 Jimmy Fits Years: 82 05 Fits Transmissions: 700R4, 4L60, 4L60E, 4L65E, T5, TKO, TKX, 2WD AR5. The RCS 10B 700 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. If installing a TKO or TKX transmission slight floor pan modifications may be required. A GMTM S short transmission mount