How to Remedy a Weld-On Jack Shearing Gears Due to Coupler Binding  

Question:

Expert Reply:

Because Shelby are no longer in business, it is extremely difficult to find replacement parts for your jack.

Instead, I recommend replacing it entirely with a new one like the Fulton Round, Snap-Ring Swivel Marine Jack - Weld On, part # FTJ120W0301. This will use the existing weld-on bracket and collar from your existing Shelby Jack. I've linked to a video installation of this jack so you can see what I mean. It has a weight capacity of 1200 pounds.

As for the binding problem with your coupler, I have two suggestions. First, one of the easiest things you can do to ease coupling is to use a hitch ball lubricant like part # 58117 because it reduces friction, which prevents movement.

Second, it may be that your coupler latch is no longer up to par. If you can replace the latch with a new one, it may solve your problem without having to look at completely replace the coupler altogether. I've linked to a video installation of part # CA-5100-RK to show you how one of these latches can help reduce the binding (especially if the locking nut is too tight).

expert reply by: Kef G

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