Got these from a friend who decided to front mount the engine in his 55 Nomad-and owed me a few $$$. These should work in any 55 56 57 Chevy. But they would also work in a hot rod build. These are brand new Danchuk side mounts and a rear trans cross member to side mount the motor in your tri-five. If you use these, you eliminate the bellhousing mounts. You DO NOT use these in additon to the bellhousing mounts- Too rigid and you'd damage an aluminum case transmission. Side mounts are Danchuk new in package and the crossmember looks unused. Price plus shipping. Paypal only. Thanks!