i did a engine swap and now i have a vacume line i have no idea where it goes. its on the passager side next to the tranny and has some vacume. where should i look to hook it up. it looks like it is connected to the transfer case but not sure

 

not to much knowledge about the xj yet but maybe it goes to the front diff disconnect

 

Pics? May be the vent hose.

 

Top of the transmission passengers side it is a vacuum. It needs to be in there for the operation of four wheel drive.

 

it is hooked to the top of transfercase where does the other end go