2026 Load King 503-705-DD-MB 

2026 Load King 503-705-DD-MB

The Load King 503-705-DD-MB detachable gooseneck trailer is a custom drop deck used with a mechanical booster. This gooseneck boasts a 70-ton capacity in 12′ load concentration at 60 mph. Dimensions include 19′ 6″ total gooseneck length with 66″ flip and a 175″, 109″, and 85″ swing clearance.

Features May Include:

DIMENSIONS:

• 70 TON CAPACITY IN 12 FOOT LOAD CONCENTRATION AT 60 MPH
• 100,000/80,000 PSI YIELD STRENGTH STEEL CONSTRUCTION
• 35,500LB ESTIMATED BASE WEIGHT
• 19 FOOT 6 INCH TOTAL GOOSENECK LENGTH WITH 66 INCH FLIP
• OVER EXTENSION
• 175 INCH, 109 INCH, AND 85 INCH SWING CLEARANCE
• 26 FOOT DECK LENGTH, 9 FT WIDE
• 26 INCH LOADED DECK HEIGHT
• 8 INCH LOADED GROUND CLEARANCE
• 36 INCH FRONT FLIP UP RAMPS
• 51 INCH 5TH WHEEL HEIGHT

DECK:

• 4 FULL DEPTH 18 INCH CAMBERED DECK BEAMS
• HEAVY DUTY I-BEAM CROSSMEMBERS
• 2 LASH RINGS ON REAR BRIDGE AND 2 ON TOP OF NECK
• 7 LASHING BARS EACH SIDE OF DECK INSIDE HOLES
• 13 FULL DEPTH SWING OUT OUTRIGGERS PER SIDE
• 2 INCH APITONG OUTER WITH OPEN CENTER AND
• 2” APITONG OUTRIGGER BOARDS
• REMOVABLE DECK CONNECTION, HORIZONTAL PIN
• FLAG POCKETS FRONT OF DECK AND REAR OF TRAILER
• 30 DEGREE RADIUS REAR DROP
• ¾ HEIGHT REAR BOLSTER
• EXCAVATOR CUTOUT BOTTOM PLATED TO FIRST AXLE

SUBFRAME:

• AIR RIDE SUSPENSION WITH AUTOMATIC AND ADJUSTABLE
• HEIGHT CONTROL
• THREE 25,000 LB AXLES
• 54 ½” INCH AXLE SPACING
• AIR LIFT 3RD AXLE WITH SCALE-O-MATIC
• TWELVE (12) 275/70 R 22.5 TIRES
• TWELVE (12) 8.25 X 22.5 HUB PILOTED STEEL DISC WHEELS
• OIL SEALS
• 16 ½ INCH X 7 INCH WITH SPRING BRAKES
• AUTO SLACK ADJUSTERS
• INNER SUBFRAME SUSPENSION BEAMS AND CONNECTIONS FOR
• OPTIONAL 2 AXLE MECHANICAL BOOSTER
• NOTE: 3RD AXLE MOUNTED DIRECTLY TO TRAILER MAIN FRAME

GOOSENECK:

• NON-GROUND BEARING GOOSENECK DESIGN
• WET KIT OPERATION, LESS TRACTOR PORTION
• HYDRAULIC SELF-LIFTING DETACHABLE GOOSENECK,
• ABLE TO LIFT ABOVE OR BELOW TRANSPORT POSITION
• HYDRAULIC FRAME LIFT SUPPORT
• HYDRAULIC PRESSURE TO KINGPIN LOAD CHART
• AIR-ACTIVATED, SELF-LOCKING PIN ON GOOSENECK, POSITIVE LOCK
• GOOSENECK CONTROLS LOCATED AT REAR OF GOOSENECK FOR EASY ACCESS
• ADDITIONAL EQUIPMENT:
• MID-TURN SIGNAL AND CLEARANCE LIGHT
• DOT RUBBER MOUNTED SEALED BEAM LIGHTS
• WITH MODULAR HARNESS

MUD FLAPS

• RED AND WHITE CONSPICUITY STRIPING
• SHOT BLAST – PRIMED AND PAINTED BLACK POLYURETHANE
• COMPATIBILITY:
• HELPER DOLLY: HD 702GMECHANICAL BOOSTER: MB502