I've got my check gage light coming on followed by the tow haul flashing... but not when cold, the truck/trans. seems to warm up to the same spot with no problem then once the gage hits that mark, it trips the lights. I had done some reading and sounds like Trans Fluid Temp sensor... which is in valve body, correct? Anyhow, I bought the sensor today and was planning on doing it on saturday. My question is, #1- the pan gasket IS reusable correct? And #2, are there any special instructions, how-to's or anything I need to look for? Or just drain,drop pan and pull out or ???