can't pinpoint the leak...

I've been keeping an eye on the trans level. It's good. When I bought the car the motor was out and the original SBM pump was wired to where the battery tray was supposed to be. I thought from casual observation it was coming from the trans because I did have a leak there to begin with. I popped off the pan and pulled the fill tube and used right stuff. During came break in I had a cooler line that was a little loose and dripping. So when I had wiped under the car without jacking it up I noticed the trans cross member and torsion bar on right side were wet. I drove it again and same area was wet. When I jacked it up I couldn't find much wet on the trans. Just a little by speedo and a little on the bottom of bellhousing. But not that I could roll under the car I could follow further forward and the pitman was wet. Following it up I could see it was originating from the steering box. I could also see discoloration on the headers behind the pitman and storing box. With the suspension hanging I started the car in the car to warm it up. Got down to look for leaks and the steering box was dripping bad. I had noticed a light pooling in the area before but assumed it was from when I changed the filter and oil ran onto the K member. The oil from the steering box was darker than I would have expected. In the drips it was a dark reddish brown. It tastes like what was on the torsion bar. Anyway, moving the wheel back and forth a bit and the drip slowed substantially. So I continued with my test. I have only noticed the smoke when accelerating hard from a roll or kicking down to 1st. So I had my wife watch under the car as I revved up in neutral to 4-5k. Nothing. Had her watch the exhaust. Nothing. Repeated with the car in 1st holding the brake. Nothing. At this point I am assuming this is my culprit.