T5 question
 

Im looking at putting a t5 into a 67 and got hold of one today but am a little bewilldered. on the drivers side near the top just behind the bellhousing there is an opening where it looks like a hose or a sensor goes into, its about 1/2-3/4 inch in diameter threaded. can anyone tell me what this is for and what to do with it...I know Im a dumb*** but this is my first attempt at a t5. Its a borg warner world class numbers on side which I cant find anywhere either are- 13-52-097-913 which maybe someone can decipher that for me as well.

backup light switch

casting number dont do much...do you have a tag number..tags are bolted to the case

i thought the backup light switch was the one in the side near the middle with the two prongs sticking out for wires to go on this is like a large port you would see for a transmission cooler line which of course this doesnt have but thats what it looks like and no the tag was not on it

Oh you are right.

Its the neutral safety switch