SB3 is a 9 inch extended gooseneck trailer coupler with a 4 inch Square trailer Stem.
Semi gooseneck hitch model 205ST30K has a standard 2 5/16" gooseneck ball and is rated at 30,000 lbs. Gross Vehicle Weight. This is our semi hitch for standard gooseneck hitch trailer. This also works for a Cab & Chassis except for some Dodge models and a special one is available for the Dodge Cab & Chassis.
A 3" gooseneck ball is available. part number FL1005-3 and can be found under Flip-Over Accessories.
| Brand | PopUp Towing Products |
| Content | Extended Gooseneck Trailer Coupler |
| Parent Product | SB1 9`` Extended Coupler for 4`` Round Pipe |
| Size | SB3 |
| Weight | 57 pounds one box |
Install by drilling three 3/4" holes on each side of truck frame, bolts are included. Flip the ball over and you have clearance to use your fifth-wheel hitch.