Do I Need A Support Jack To Replace A Gearbox For My 5th Wheel Trailer

Updated 08/02/2021 | Published 07/31/2021

Question:

Do you need to place a support jack under trailer before you remove gearbox ? My tube on the gear side did not retract the same amount as the non gearbox side. I suspect gearbox may need replaced.

asked by: Ray L

Helpful Expert Reply:

If you can level your trailer it is not necessary to add an additional support jack before removing your gearbox. The gearbox turns the screw that activates the jack, but it also has a fail safe that does not allow the jack to drop if the gearbox is removed. In the case you are not able to level your trailer, you will need an additional support jack.

I have included links to our stabilizer jacks and gear boxes below.

expert reply by: Mark Smith