I want to get a bed cover for my 2006 quad cab short bed but there are so many to choose from. What type of bed cover are you guys using? Fiberglass, aluminum roll back, poly roll back (retrax), tonneau cover. Have you seen an increase in MPG? Does anyone have a spray in bed liner and a cover? Any problems with fit? Any advice would be great.

 

I have a Line-X sprayin liner that is over the rails and a Bak roll up cover.
So far as fit, it works great. Mileage wise, I think maybe a couple of miles better.
If I was goimg to do it again, I would look at Pace Edwards for a cover.
I went with a rollup because I looking to get a fifth wheel trailer in the near future.