Tips for Replacing and Installing Trailer Fenders:
Do your best to match the dimensions of the new fenders to your old ones.
If a fender was damaged during a blowout, use the opposite fender to get the dimensions.
As with all trailer maintenance, don't forget to chock your wheels before getting started.
For bolt-on fenders, use your existing mounting hardware, if possible.
The old mounting bolts or screws might be stripped or rusted, in which case you'll need to tap them out and buy new hardware.
If removing old, welded-on fenders, either carefully chisel them off yourself or take your trailer to a weld shop to have the fenders professionally removed.
Don't forget to prime and paint the new fenders to keep them from rusting (and to match your trailer's finish).
Before you start drilling, position each fender where you need it and center it over your wheel well.
Mark where you need to drill (measure twice, drill once).
Don't tighten down the mounting hardware completely until you're sure the fenders are mounted correctly.
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