Robb, If your suction line is the same as mine, there is a small tube mounted on the top of it where the capillary tube from the expansion valve slides into. I located the capillary tube from the temp sensor right behind and along that tube and used 3 small hose clamps to hold it in place. Make sure to wrap the lines with "tacky tape" to insulate them. I have actually insulated the entire suction line as it exits the evaporator since I took the pic above. The best setup would be to install the capillary tube into the fins of the evap, but mine works fine like it is. Actually is should get a little colder the way I have it. Hope this helps.