thanks guys this gives me a few options,but as far as just pulling the tank off i did have the pump out and did tug on the tank straight up and it only moved like 16th of an " seams to me it's not going to give but will keep trying only had truck since Sat 4/17 and don't seam to see anything holding it ??? so it the original tank that i can tell ,,, & yes i will either fix -r- replace i do use the washers and yes i do use RainX fantastic stuff been using it for 15+years