In order to determine which over/under conversion kit you'll need you will need to verify the capacity of the axles on your 2007 Jayco Jay Flight 31.5 BHDS, and that your springs are already not positioned over the axles. The best way to confirm your axle's specs is by checking the sticker on the center of the axle, which will give you the capacity. Generally speaking, axles typically have the following diameters depending on the capacity:
Round, 2-3/8 inch diameter = 3,500-lb or 4,400-lb... view full answer...
If your ladder tube has a diameter of 1-1/4 inches, you can use these # 8532-CP. If you have a square tube that measures 1 inch by 1 inch you can get these # PA-425.
If neither of these caps will work for you, that is all the end cap options I have for you, but I do have these side caps # 8539-CP but these are for the Stromberg Carlson RV ladder # LA-460 specifically. view full answer...
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