Lexus IS300 T56 Magnum Swap Kits
The GR700, GR900, and GR1000 transmissions are variations of the Tremec T56 Magnum, which is the highest torque rated 6-Speed manual factory transmission ever built. These are definitely not a Fbody T56, and while they share the same internally as the TR6060 the case is not the same. The Magnum is engineered to accept an aftermarket bellhousing, while the TR6060 has an integrated bell that is not easily removed since it has an integrated pump and bearing support.
