Start by reading the whole post that Travis72 posted the link to big block dart for. Although many of the items are for A-bodies they still apply. No matter what you do on a e-body with a T-56 it looks like you'll have to get creative with the torsion bar cross member. Are you using an Alterkation or other non-torsion front? If so, look at the pictures posted in the
http://www.bigblockdart.com/index.php/topic,23139.0.htmlthread by Bill Reilly of Alterkation fame. He show's a Challenger they installed a T-56 into. I believe this is the Viper motored Challenger they did with Delaney, but it's still the same for the install and clearance. Notice they cut the torsion crossmember mostly out, boxed it, angle braced and welded it together with the subframe connectors. Then they made a new crossmember/tranny support combo back further. The T-56 is large and needs to go up further than an equivalent 5-speed TKO 600 especially to get everything aligned from pinion angle, to headers, etc. Some headers on TKO 600 installs angle too far down and that's a smaller transmission.
If you're planning on doing this, you'll need to extremely modify the crossmember or make a new one. The whole tunnel will have to be removed and raised for modifications/clearance, plus the shifter probably won't fit anywhere near the console if you plan on a stock one. Companies like Steeda and others offer a lot of offset shifters too. Just search out T-56 shifters.
Look at Quicktime bell housing site. They offer several versions of their bellhousing for the Mopar T-56 swap. One uses the Viper tranny and the other uses the GM LS1 tranny. The viper is set up for a stock fork and slave where as the GM uses the hydraulic throwout bearing. Pilot bushings need to be changed also. Quicktimes bells are a bit smaller around than Lakewood, McLeod, etc. and might make the clearance a little better.
The new TR6060 is being put in most of the new high performance cars like the Viper, Shelby, Vette?, and maybe others. It has a higher output and better synchos but has an intergrated bell housing. Tremec is coming out with the same transmission with the standard T-56 bolt pattern which will work with the aftermarket SFI bellhousings such as Quicktime. They are calling this the T-56 Magnum and is supposed to be available to Tremec dealers around June/July?
I lot of this info came from Quicktime. They were very helpful. Currently I'd like to do this transmission on my build. It would be behind a 6.1L Hemi but would be very similiar in the install.
I hope the guys from Classic Mopar 5-Speed chime in. Please correct clarify anything I have stated wrong
I believe they are a Master Tremec dealer and will sell T-56 boxes also?
Anybody else got ideas/installs on this? I'd love to see some more pictures.
Wes