I have a base model 4cyl 2wd 2007 tacoma. Recently found a 1983 fwc fleet which in regards to size is kind of like a current day eagle that has a 7' base. Gets 21-23mpg without the camper. With the camper it gets 18-20mpg. The only addition to the truck are a pair of timbrens on the back axle. With the camper on it they just about rest on the axle. So I'm not experiencing what I would call week shocks. For mounting I made some brackets that bolt into the bed that are identical to what FWC sells. Then turnbuckled the camper to that. I had to screw in and reinforce new eyebolts under the overhang of the sides of the camper for mounting to. I use basic cheap construction store turnbuckles that came with the camper. Obviously I'm not going to be bounding over any boulders so I don't expect any problems.