[wagonman76]

I used to have an 86 Celebrity wagon. It was a real beater. Bought it for $50, drove it for quite a few years, then junked it for $100. It was carbed, so it would run fine with no ECM power, only thing was Id have no TCC lockup. But for awhile it had a broken TV cable, so it no longer downshifted with throttle. It would run through the gears and get to 4th gear after about 10-15 mph. So I would manually shift it. As long as I let up on the throttle during shifts it was smooth. One thing I really liked about that was I could floor it in OD and it would not downshift, it would just keep going faster and it became very easy to bury the speedo. This was over 10 years ago when I was not so eco-minded. But having that option now would be nice, keeping it in OD whenever I wanted, I could get better mileage. I would think that any older GM non-electronic tranny could do that. However I read somewhere that having the TV cable out of position for any extended period can damage the trans, so I am leery of trying it with my good cars.