Tremec TKO500 5 speed trans, modified by American Powertrain - they claim no tunnel hump mods needed to install. Per American Powertrain - ProFit TKO Kit for 1966-70 Mopar B-body Initially went this route ( but really wanted a 6 speed ) and was not too sure of my welding skills to modify the tunnel hump for the 6 speed. American Powertrain said that they could machine the transmission and eliminate the need to modify the tunnel hump. The good - you won't have to wait 18 Months to get the work done, it's all done already and I've got the finished product ready to sell. ( yes - I've got a 6 speed instead ) so I no longer need this transmission and I'm making it available to the other FBBO members that would be interested. Here's how the transmission look initially: After the modification - plenty of room in the back for clearance now . . . The full transmission - still in the BOX - there is 0 miles on this transmission . . . it's never been in a car and driven . . . rear transmission support also included with this deal . . . Isolation bushing for rear of transmission - band new - also included . . . Directions and bolt kits included . . . Think this was the speedometer cable . . . will have to go look again . . . And they provided this 5 speed tunnel hump patch panel . . . never got that for too see if this was also needed . . . so it might be a "minor" mod is needed . . . Still got more to uncover . . . Includes . . . Bell housing Clutch ( new ) Clutch plates ( new ) flywheel ( new ) Will add pictures when I track them down in the parts mountain . . . And a clutch pedal linkage package - I'll get the additional information . . . as I find it . . . Question . . . shoot me a PM . . . will be happy to hear what you have to offer and I no longer need this setup for my car . . . let someone else put it to good use . . . Note: No warranty implied or attached - No tunnel hump mods is the work and word of American Powertrain - I'm just selling this kit that I was going to use and decided to go for the 6 speed like I wanted . . . please understand my concerns with making this known ahead of time.