No, just adding in spray foam will not increase the capacity of the bumper in order to hold the 24x64 etrailer Cargo Carrier # e83YR. The main figure for an RV bumper's capacity is how strong the connection is to the trailer frame, which is why we offer the Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets # MO34VR to help support the extra weight that the cargo carrier puts on the bumper.
Filling the bumper with spray foam would actually just increase its overall weight,... view full answer...
Generally, trailer tires wear on just the outside of the tire when the trailer is overloaded (which could be the case with more weight on the rear axle at the rear), there is an issue with the suspension being misaligned, or they are not fully inflated to their maximum psi. I'm not sure what your tire's max psi is, but make sure you want inflate them to the maximum psi to prevent uneven wearing, and you can find on the tire's sidewall. view full answer...
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