Shocker Square Gooseneck 5" Outer Sleeve & 4.5" Inner Stem Tube Shift Lock Coupler - Adjustable - Square 4.5" Straight Pin, 2-5/16" Shift Lock Coupler – Square 4.5″ Straight Pin, 2-5/16″ Shift Lock C…

Weld on raw steel thick walled square outer tube sleeve and inner gooseneck stem and coupler for 30,000 lbs or 40,000 lbs gooseneck trailer. Choose with a Shift Lock® coupler for a 2-5/16" or 3" gooseneck ball. Features both a thick wall inner & outer along with an adjustable inner tube stem. Inner tube replacement gooseneck stem features the dual latching coupler. Outer square is available in 3 styles; 5"OD x 4.5" ID and 4.5" OD with 4" ID. Available with inner square stem options of 4-1/2" & 4". Thick walled square inner stem tube options have extra heavy duty plating to weld coupler to stem for long term strength and durability. The patented Shift Lock® gooseneck coupler by Shocker Hitch is now available with a direct replacement inner tube stem for your gooseneck trailer. Upgrade your gooseneck trailer with the easy to use, patented dual latching Shift Lock coupler for gooseneck trailers. The shift lock design makes it easy to see if you are locked onto the ball at a glance. It is rated up to 40,000 lbs rated and is the only gooseneck coupler that captures ball on both sides. The Shift Lock handle makes it super easy to hook up and disconnect the gooseneck coupler from the ball. Our Shift Lock Coupler is easy, fast, and safe. We use dual latching simple sliding rods made with alloy steel to lock the ball in place. Available in raw steel. Professional welding required installation. Works great on gooseneck style trailers; dumps, flatbed, horse, race trailers and more. Square gooseneck outer sleeve, inner stem & coupler options can be ordered in raw steel as a set. Professional welding required for weld on square tube for gooseneck tongue. Weld on gooseneck trailer tongue kit for gooseneck trailer manufacture. Patent # 11,370,257 B1 California Residents: Prop 65 Warning

• Weld on Outer Tube Sleeve & Inner Stem with Shift Lock Gooseneck Coupler Kit: Available with outer diameters of 5" & 4.5" and inner diameters of 4.5" and 4". Heavy Duty Thick Wall Design Outer Sleeve & Stem: Outer sleeve is 20" in height. Available with Inner Diameter 4" Square or 4.5" Square gooseneck stems. Reinforced collar and fabricated & formed outer for added strength featuring 2 set bolts & jam nuts. Extra Plating for Welded Stem & Coupler Connection: Additional plating used to weld coupler to stem for long term strength and durability. Dual Latching Shift Lock® Gooseneck Coupler: Patented, game changing design. Dual latching, captures both sides of ball. Easy to use handle & see if it's latched at a glance. Patent #'s 11,370,257 30,000 lbs or 40,000 lbs gtw & 6,000 lbs or 8,000 lb tongue weight capacity: Built for the heavy duty gooseneck hauling. Both out and inner tubing is thick walled for extra strength. 2-5/16" Coupler is 30,000 lbs & 6,000 lbs TW. 3" Coupler is 40,000 lbs & 8,000 lbs TW. Raw Steel Option: Comes in raw steel and ready to weld onto the front of a gooseneck trailer. This is the set up gooseneck trailer manufactures use. Choose Coupler for 2-5/16" or 3" Gooseneck Ball: Built for heavy duty hauling. 2 Styles to Choose From: 4.5" OD Sleeve with 4" Square Gooseneck coupler with straight pin holes and 5" OD Sleeve with 4.5" Square Gooseneck coupler with straight pin holes. Inner Gooseneck Stem has 4 Adjustment Holes: Stems with holes have 4 adjustment holes that holes are 2-3/4" apart. Sold as a Set - Includes Outer Sleeve Tube, Inner Stem with welded on Gooseneck Coupler: Includes complete outer sleeve with 2 set bolts, jam nuts & through pin with clip along with the inner tube gooseneck stem & Shift Lock® coupler. Professional Welding Required for Installation: Professional welding is required for proper installation and weight rating. Optional Shift Lock Gooseneck Locks: Box style coupler & set bolt lock kit is part # SH-GK30P-400GL-BLK. Box style coupler lock is SH-GK340P-BLK. Puck lock style coupler lock is: SH-9000-350. Set bolt lock, part # SH-400GL-ISP-BLK available and sold separately. The Shift Lock coupler is also available on all Gooseneck Surge Air Hitches. Want the shift lock coupler on an gooseneck air hitch? Check out our Gooseneck Surge Air Hitches.