Will stock crossmember work for a T-5 or Tremec?
No, the mounting points are much different and does require a crossmember made for each transmission. See our online catolog for crossmember that are available. 1965-66 Mustangs that are convert using a Tremec can use the stock crossmember when the floor support is moved further back to help make room for the larger Tremec case. This is the reason we do not offer a 65-66 mustang Tremec crossmember. Call us for the rest of the details for this application.