I purchased a used '97 Taurus Gl a couple months ago with 147,000 miles on it. Recently it has been really hard shifting from gear to gear. From first to second, it can sometimes jolt you forward in your seat. From 2nd to 3rd the Rpms skyrocket to about 4 or 5 but mph doesnt increase at all. Eventually it shifts up but it just feels like it isn't connecting. I brought it in after noticing tranny fluid leaking from the bottom. They replaced the gasket, filter and flushed the system, but the leak still persisted, however the jolt from 1st to 2nd is now not existent. I brought it back to the shop and it turns out there is a hairline fracture in the aluminum pan. I'd weld it myself but that's tricky. Any ideas on why i may be slipping from 2nd to 3rd? From 3rd up it is smooth driving.. its just getting there. Any insight would be great!