3684 Andersen 4" Trailer Jack Block jk F450 Super Duty or F550

F450 Super Duty or F550 Super Duty and GMC C3500

instantly mounting the A16 hitch equipping the truck for 5th wheel towing

For a little extra security

TS35100B - Fits 2" Shank Tow & Stow

Includes all mounting hardware shown

3684 Andersen 4" Trailer Jack Block jk F450 Super Duty or F550Built in magnets instantly attach to the jack, so there is no need to double check and adjust each jack block. A 2 1 2 recessed post hole works great with post jacks Stackable for extra height (no more than 2) Weight Rating & Specs Each 8" Trailer Jack Block is rated to up to 8,000 lbs or 1,500 lbs when double stacked Each 4" Trailer Jack Block is rated to up to 30,000 lbs or 20,000 lbs when double stacked 12 diameter base, 10 diameter top Top of the