IIRC that read about the 3.06 first gear th350 in a off road fourm. Think rock crawling. In a auto trans the converter softens the drop somewhat compared to a manual. Like was posted on this thread before, a looser converter would help cover the drop better than a stock unit. Looks like to me those GM engineers were on to something. How well do these o.d. auto transmissions work without lock up? Does it overheat the trans like i have heard or is that just a myth?
Not sure on overheating. I've only had two 700 vehicles and never disabled the lockup. But the lockup is what made them so fuel efficient compared to the TH350, so I'm not sure why i would do that?
That softening may be why autos are always a gear less the manuals in the same cars?
Yeah, that gear swap for the TH350 has been around since at least the late '80s. I remember seeing it in catalogs then.
