Difference in TH400 and 4l60 converters
Different pump and turbine hubs, different height, the 4L60E converter has a lockup clutch meant for a lockup capable transmission (which the TH400 is not).
I'll send you a PM, I can probably help you out with a good deal on a TH400 converter.
EDIT: Left this tab open too long lol, someone else beat me to it.


