180. Location. Loch Katrine, Nova Scotia, Canada. Apr 5, 2009. #11. This past summer I had to replace the fuel sending unit due to gas smells in the cab after a fill up, completely rusted out. Mileage was 91267kms (about 57,000 miles). Located in a hollow spot on top of the tank like its designed…its designed to fail.
https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/gas-smell.109610/