Can HappiJac Swing-Out Extender Brackets Used with Northern Lite Factory Installed Dually Brackets

Updated 02/17/2026 | Published 03/30/2021

Question:

I have a 2021 10.2 Northern Lite that has happijac 4820 electric jacks already. I ordered them with the dually swing out brackets from the factory . Do these extension work with the factory swing out brackets to make them even more wider for a dually truck? My rear tires stick out from the fender and would like some more clearance from the tires to the jacks when backing under the camper. A bracket extension even more than the factory swing out bracket bracket offers would be great.

asked by: Gregory M

Expert Reply:

I contacted the Rep at Happijac to inquire on your question of the HappiJac Swing-Out Extender Bracket for Dual Wheel Chassis Truck Camper Jacks, # HJ54FR. His response was that yes, you can "stack" the extensions. There is however a point of concern that needs to be addressed when doing so, when in this stacked configuration it important to always extend fully in order to provide complete support. A partially extended stack may not fully support with swaying. The second item of concern is when stacked and folded will the new configuration get in the way of the back doors. This is mostly a concern for short bed truck with extended cabs but please be aware of this prior installing.

expert reply by: Michael R

Tom H.

2/17/2026

I bought these for my 2021 10.2 Northern Lite and just loved them. So much easier to back in and pull out from under the camper. I also got the stable camper supports that helped with the swaying. However I recently took my Northern Lite back to the manufacturer for some repairs and while they were going over the unit they found that the fiberglass had delaminated from the backing around the front jacks. They said that they highly recommend against using these otherwise wonderful extensions because the structure behind them wasn't designed to support the weight cantilevered away from the camper body. They have told me to bring the camper back for more repair work in the area where those jacks are mounted. I really wish they had worked because they made life so much easier.