Forum Discussion
BigToe
Aug 28, 2013Explorer
Someone earlier posted a picture of their Dana 135 axle on their F-550. I noted that the spare tire was mounted underneath that truck, aft of axle.
That means that the 40 gallon tank was removed, for that to happen. If you keep the stock 40 gallon aft axle tank on an F450/550 chassis cab, as well as the Ram 4500/5500 chassis cab, you will have to come up with your own creative place to carry the spare tire on a chassis cab.
This is not a trivial issue. Mounting stuff in front of the truck on a front receiver has been shown to reduce air flow to the heat exchangers, which might not be significant most of the time, but on a very hot climb up a 7-10% mountain pass grade in the summer, it might become a concern.
A custom bed can provide a solution to the spare tire carrying problem, as can a trailer, or perhaps even a custom made mount on the back of the camper, weight and structure depending. Obviously, the F-350 doesn't have this issue.
That means that the 40 gallon tank was removed, for that to happen. If you keep the stock 40 gallon aft axle tank on an F450/550 chassis cab, as well as the Ram 4500/5500 chassis cab, you will have to come up with your own creative place to carry the spare tire on a chassis cab.
This is not a trivial issue. Mounting stuff in front of the truck on a front receiver has been shown to reduce air flow to the heat exchangers, which might not be significant most of the time, but on a very hot climb up a 7-10% mountain pass grade in the summer, it might become a concern.
A custom bed can provide a solution to the spare tire carrying problem, as can a trailer, or perhaps even a custom made mount on the back of the camper, weight and structure depending. Obviously, the F-350 doesn't have this issue.
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