Guys, I need help with this one. I bought VDO Part# 701-1810 which is suppose to be the 1/8th inch temp sender from a local Napa store.(It does not have the nut on the top to attach the wire like the one that goes in the intake)Is this the right one to go in the drivers side of the block? A small 5/16 square head plug is in there currently. (The sender needs a 1/2 wrench)I cannot get the sender to go in enough to thread, it feels like it is hitting something. I'd swear it is the wrong one, but not sure! Do I need some type of adapter or something? Thanks...