A body 4 speed OD
Just posting an FYI to other members because lots of people don't know about these. These are great transmissions transmissions if you use your car as a daily driver.
Here's the pros about it. Short first gear, super quick off the line for getting a jump on the green lights. Plus nice for cruising slow through parking lots etc. Tall 4th gear so you can finally take your car on the freeway and keep up with modern day traffic. And finally, the all aluminum case. Saves a ton of weight. Since aluminum transfers noise, these transmissions are a little noisier than a standard iron case; but it's cool in my opinion. Makes it sound like a Muncie. Haha
I've got one of these behind a 340 with 3.55 gears. Love it. I can rip down the freeway at 70 mph turning about 2200 rpm.