Installed a RDS Auxiliary Fuel Tank/Toolbox Combo — 60 Gallon, Model# 72644 today. Picked it up at local Northern Tool, so no shipping, just sales tax.
Tank:
http://www.northerntool.com/shop/too...6721_200306721
Installation Kit:
http://www.northerntool.com/shop/too...5501_200315501
Installation was pretty easy, just wish I had done it a week earlier, Diesel Fuel has gone up 30 cents in last week here in Charlotte. Went to truck stop and filled it up, then got my truck weighted for the first time. Front axle was heavier than I thought it would be. Now just need to take the Monty over and get it weighted now.
Steer Axle: 4800
Drive Axle: 3580
Total: 8380