ok i know it has been a LONG time but i now have a 90 reg cab sb in GREAT shape. when i got it the engine was torn apart because the kid thought the timing chain was gone WRONG. he fried him computer. so i fixed the wiring and tore the engine ALL the way down rebuilt it and started putting it back together. well i got it all back together except there are some pieces missing. now for the specs. it has the 22re with the 5 speed, 3" lift and 31" tires and it is in PERFECT shape inside and out. now for my question i cant find 1 part to get it started. if you look under the hood in frount- look down the frount of the engine about 1/2 way down the timing chain cover on the pass side there is a tube connected to the back side of the cover. what is it and where dose it go and where can i get one? please help, this truck has been sitting for about 6 mo while i was looking for this part i got on here before and no one answered PLEASE HELP