bellhousing, gm ls engine t56 transmission speedway motors the perfect piece to your ls/t56 swap project, speedway motors is proud to offer a lightweight, aluminum bellhousing option for swap projects or as a replacement to your cast oem bellhousing. fits any ls motor to t56 transmissions that were intended for ls engines. (does not fit t56 for 92-97 lt1 engines.)1998-2002 camaro/firebird with ls/t56 combos as well as the gto t56 transmissions. fits transmissions with tag numbers: tuet11009. tuet11012. 1386-000-017. 1386-000-020. 1386-212-005. 12453263. 92142856. any magnum t56, or speedway motors t56 offering. does not fit 92-97 lt1 t56 transmissions.