Can The etrailer Classic Base Plate Kit # e74FV Be Bolted To A Rockhard Front Bumper
Updated 02/14/2025 | Published 01/27/2025 >
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Question:
Will this base plate kit work on Rock Hard or LOD aftermarket steel bumpers installed on a 2004 Jeep Wrangler Unlimited LJ?
asked by: David P
Expert Reply:
Hi David,
The etrailer Classic Base Plate Kit # e74FV could be bolted to your Rockhard front bumper but you'd need to verify with Rockhard that the bumper is rated for flat towing. It looks like they design their bumpers for this usage but it's always best to confirm that your specific model has the rating to ensure you don't have it breakdown while you're out on the road.
If you don't have the rest of your flat towing components then I have the following recommendations for you:
Tow Bar: etrailer SD Non-Binding Tow Bar # e34ZR. This would come with safety cables and complete your physical connection between the motorhome and vehicle when mounted to the # e74FV.
Tow Bar Wiring: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-15267. This would trasnfer your motorhome's traffic signals back to the TJ's tail lights.
Braking System: If your motorhome has hydraulic brakes then I recommend the Demco Stay-IN-Play Duo # SM99251. If it has air brakes then I recommend the Demco Air Force One # SM99243 instead.
If you have any other preferences or questions just let me know and I'd be happy to discuss further.

David P.
2/11/2025
Hi Kevin, My Blue Ox tow bar is BX7445 and I have both the original adapters with 3 tabs as well as a set of Blue Ox BX88296 7/8" Off Road Tow Bar Adapters. It appears that your Part Number: e74FV kit will work with my original Blue Ox adapters and your kit also has a tab to hook the safety cables to so I don't have to come up with a solution for the safety cables. Thanks, David

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etrailer Classic Base Plate Kit - Fixed Arms
- Tow Bar Base Plate
- Fixed Draw Bars
- Visible
- etrailer
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David P.
2/9/2025
Hi Kevin, Thank you for the informative response, this is very helpful. When I purchased my Winnebago Aspect 27K from the previous owner it already had a M&G setup installed, along with Blue Ox tow bar and safety cables. I am starting from scratch with what I need to prepare my 2004 Jeep Wrangler Unlimited (LJ) for flat towing, so I need the tow bar wiring and braking/breakaway system to complete the systems required. I have confirmed with Rock Hard that the bumper I purchased is rated to flat tow my Jeep. As far as the tow bar wiring system, I would like to install a kit whereby I don't have to tap into the factory wiring if possible, unless tapping is the best solution. Since I have the M&G compressor and air connection already installed in my RV, I assume the best option is to stay with the M&G system and purchase their Model 200 with their breakaway system.