I just realized I haven't updated this since FEBRUARY!?
I'll try to go through this as best as I can, alot has happened since then. Had a baby, bought a new(er) truck, bought a new car, switch shifts at work, and done a bunch of racing. But we'll get to that. I think I left off right before I got the new transmission put in so we can start there.
I was previously using a Tremec TR-6060 from a 2010 Camaro. This is a great transmission. Internally it is the same as a T56 Magnum. It's downfall is that it uses a fixed yoke instead of a slip yoke because the Camaro has IRS and the driveshaft never moves from it's fixed position. This causes all kinds of problems with a solid axle car because the the axle is constantly moving up and down and thus causes the driveshaft to need to change length. As you know the driveshaft doesn't really change length(though it can), instead it uses a slip yoke in the transmission so the driveshaft can move in and out to make up for these variations. Not only that but this is a very heavy and from the factory it has issues with slave cylinders. I'm done with this trans.
My solution; A company called FABBot started making adapters to use an Aisen AR5 transmission behind a LS using a slightly modified 4L60 bellhousing. This is the transmission that comes in a Chevrolet Colorado along with slightly different versions that were used in the Saturn Sky and Pontiac Solstice. When Chuck Mallet built his LS2 swapped Pontiac Solstice's, he kept this transmission in the car and they did just fine. I probably wouldn't throw big sticky drag slicks on the car and start dumping the clutch from 6k but I think for my purpose with this car and the relatively light weight it will do just fine.
Here is the trans ready to go in the car. The clutch lines run somewhat close to the header so I used this black insulated silicone sleeve from DEI to keep the fluid from getting hot. This setup uses a stock Colorado slave cylinder and I opted for the powdercoated bellhousing from Fabbot. I will replace the shifter assembly later.