i have a 3sp auto so this may or may not apply. the kickdown cable will run from the throttle body to the top of the transmission just about where the shift linkage exits through the transmission on the EXHAUST SIDE. if you are considering doing this yourself you will need to remove the exhaust from the flange to the middle bracket (under passengers seat is suspect) which links the rear to the front exhaust system. you will need to get a replacement kickdown cable, i would consider just going to the scrap yard and removing on from a car if you can b/c i suspect they may be pricey new. then it is just a matter of connecting the kickdown cable at both ends and adjusting it per your haynes manual. you will need an o-ring for the kickdown cable attachment at the transmission end.

i think the reason the haynes manual says you have to drop the pan may be b/c they mean you have to drain the oil. to do this just loosen the oil filler tube attachment as it enters the transmission and drain the oil from there. there is no need to completely loosen off the nut, and it will actually prevent you from stripping the thread it you try to put it in after completely removing the nut. the reason for the drain is just so you don't have oil everywhere when you remove the kickdown cable.

about the loss of oil. if there is no visible leak try checking the radiator expansion tank. the oil cooler lines are prone to cracking and the transmission oil can escape into here. let me klnow how you go.

hope i have been of some help.

chez