Replacing A 4-Bolt Trailer Jack For An A-Frame Trailer Coupler
Products Featured in This Question
Question:
I am looking to replace the trailer jack on an old camper. The hitch is A-frame style. I see you have a lot of 3-bolt A-frame jacks, but I need a 4-bolt. Do you have anything like that? I am hoping not to have to modify to a 3-bolt, and am not particularly interested in a side-mount.
asked by: Jj
Expert Reply:
Almost all A-frame jacks now have the triangle or round mounting plate with the 3 bolt-3 inch on center holes. We do not carry anything that has the 4 holes. We do have some electric jacks like the Stromberg Carlson Electric Trailer Jack - Drop Leg - A-Frame - 23" Lift - 5,000 lbs - Black, # JET-5000 that have a round plate to mount, but the holes are still lined up with the triangular mount design.
Unfortunately you will either have to weld the bracket or drill holes in your coupler for modern standard trailer jacks. My recommendation is to drill new holes and use a jack compatible with your tongue weight capacity because that's how the jacks are designed to install and welding may void its warranty. I've attached an article on trailer jacks to help.
Another option would be to change out your coupler with a new one that has the standard bolt pattern like Demco A-Frame Trailer Coupler w/ Jack Hole - eZ-Latch - Black - 2" Ball - Bolt On - 10K, # DM14793-81.

Product Page this Question was Asked From
Stromberg Carlson Electric Trailer Jack - Drop Leg - A-Frame - 23" Lift - 5,000 lbs - Black
- Camper Jacks
- Pop Up Camper
- Teardrop Camper
- Travel Trailer
- A-Frame Jacks
- Steel
- 4001 - 5000 lbs
- Electric Jack
- 23 Inch Lift
- Bolt-On
- 1 Jack
- Stromberg Carlson
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Dimension from Mounting Bracket to Top of Jack on JET-5000 Electric Trailer jack 5,000 Pounds
- Q&A: Replacement RV Door Latch for Jayco Redhawk 29XK
- Article: Trailer Wiring Diagrams
- Q&A: Recommended Electric Trailer Tongue Jack for Various Trailer Sizes
- Q&A: How Many Entry Codes Can Be Programmed Into The Bauer NE RV Entry Door Lock BA53UR?
- Article: How to Measure for Trailer Hitch Drop
- Article: 5 Tips to Confidently Choose Your Weight Distribution Hitch
- Q&A: Wobbly Head After First Trip w/ the Stromberg Carlson Electric Trailer Jack
- Q&A: When Should You Replace The Valve Stems On Your Trailer
- Q&A: Comparing the Curt Spectrum, Tekonsha Voyager iD, and Redarc Tow-Pro Elite Brake Controllers
- Article: 2 Steps for Finding the Right Weight Distribution Hitch Size
- Article: Trailer Jacks
- Article: Performance Chips and Modules
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)