If you have the cast iron bell housing that bolts to the cross member and the transmission hangs out into space, you will have to do the same mods as the 235 guys. If you have an aluminum bell housing and the tranny tail sits on a cross member then all you need is the Astro disc.
best wishes,
Les
what is the difference in the bellhousings in regards to the mods to a t5 installation other than the mounting
to clarify . if one has a 283 w/cast bellhousing and a 283 w/aluminim b/housing what is the difference with the installation