ProtoFab
1978-1979 Bronco RockSolid Single Rack Rear Bumper (PF503)
1978-1979 Bronco RockSolid Single Rack Rear Bumper (PF503)
This sleek bumper is made from 1/4" sheet metal and offers the best body protection and style available for your early Bronco. With its easy bolt-on installation that requires no welding or drilling*, it’s hard to beat. Our RockSolid rear bumpers wrap around the rear corners to provide protection for those precious quarter panels and also have Hi-Lift Jack access holes** cut into the bottom area should you ever need to use one to get yourself out of a tricky situation.
This bumper includes a unique rack designed to hold up to a 37” spare tire with 5.25" backspacing. If you are running a wheel with a larger backspacing, you will need to use wheel spacers. This rack is made of 2" x 3" x 0.188 wall rectangular tube. The hinge uses two 3/4" permanently lubricated heim joints to open the rack. This ensures a smooth and easy hinge to maintain. Included with this rugged rack is our coveted Cam latch mechanism which is adjustable and offers many years of rattle free use. The rack is also fitted with our new Rack Lockout system which stops the open carrier at a safe location preventing it from swinging into the side of your truck and also back at you. Lastly, we included a 2” unrated receiver hitch which is capable of pulling the stock recommended weight for your Bronco.***
*This statement applies to our Fully Welded edition. The other editions require several hours of welding and grinding. Additionally, If you order a body lift, there may be a couple holes you have to drill.
**These are access holes for use of the Hi-Lift jack. We do not currently offer a solution for Hi-Lift jack storage.
***This statement applies to our 1/4" bumper. If you plan on using the receiver to tow, please use your best judgement. Our hitches are unrated but can support the stock towing capacity of a Bronco (we do not claim this on f-series trucks) as our bumper mounting system bolts on the vehicle frame. Small and lightweight single axle trailers are typically safe to tow behind your Bronco. If you tow something that you shouldn't be towing with your Bronco, you could seriously injure yourself or others should something fail. We are not liable for any damage, loss or injury.
Edition
Tack Kit: A tack welded kit that arrives in its true form and will require several hours of welding and grinding to complete. It is not a flat kit and will not be more economical when shipping.
Welded: Arrives as unfinished raw-steel ready to install. We ALWAYS recommend test-fitting the bumper to your truck BEFORE applying paint or powder coat. Once you have successfully mounted the bumper to your truck, it is safe to remove it and apply a finish.
XLT / Eddie Bauer Models
If you run into an issue with the tailgate trim hitting the cam bail when the tailgate is open, you can run a new cable stop (approx 17") on your tailgate. Otherwise, you will have to notch the trim.
Mounting to F-Series Trucks
There have been several people who have successfully put these bumpers on pickup trucks. Please keep in mind that these bumpers are made for the Ford Bronco and the stock axles they come with. These bumpers will fit on F-Series pickups however the frame is not the same, and sometimes the bolt pattern for the spare tire will be different. Mounting the rear bumper to a pickup truck is possible, however it may require moderate to heavy modification to install the bumper properly. You will have to order the correct wheel plate to make the spare tire fit. 8 lug wheel plates are an additional $45. The frame mounts will also need to be ordered unwelded and you will need to modify/create a custom bracket for mounting. We DO NOT recommend putting these bumpers on pickup trucks unless you have an experienced fabricator contracted for the job. We DO NOT provide installation assistance in this case.
Bumper Dimensions
Interior dimension between two side wings is 76".
Standardized Bumper Changes
Orders placed before 06/16/2025 will come WITH an unrated receiver and the 5/8" pivot system unless ordered otherwise. They did not come with the rack lockout system unless ordered that way specifically.
Orders placed between 06/16/2025 and 09/31/2025 automatically came with a 3/4" pivot system and the branded pivot brace as well as the rack lockout system at no additional charge. If you desire a receiver, you need to add the receiver to the bumper for an added charge.
Orders placed on or after 10/01/2025 come WITH an unrated receiver, a 3/4" pivot system with PF branded pivot brace as well as the rack lockout system.
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