Also if your instructions did'nt tell you...you should have it as level as possible.The best way I've found to do this is get some modeling clay at Michaels and build a shallow resevoir slightly larger than the trans. then pour in your 2-part..also try to mix it slowly not to make too many bubbles for they will interfere with your signal.The best epoxy I have found has been the Devcon 30 min. It will or should set depending upon temp in 15-18 min.to the point where you wont have to worry about the trans moving.Not full cure for 24 hrs.Also make sure your surface is VERY clean and you may even want to rough it up a bit.........Hope this helps