Will call Bowtie bits in the a.m. and yes will re-conduct the readings, float travel up and down match up to the original sender, float inserted so it travels up and down facing the longest part of the tank. It was ordered as a 30 ohm sender for my 52 1/2 ton pickup. Things seem to work except the fact that it only reads half back to empty, here's hoping a Runtz will straighten this all out. Again thanks for all of your responses.