B&W Trailer Hitches Turnoverball Model 1050 (Chevrolet_GMC) - Manual (Page 2)

INSTALLATION INSTRUCTIONS
STEP ONE
STEP TWO
From the underside of the truck, position the two crossmembers (1) and (2), across the top of the
frame rails, between the bed and frame. Start with the rear crossmember, (2) which is the solid bar. It is
symmetrical, so it doesn’t matter which end goes to the driver’s side. From behind the differential, raise the
passenger side end of the crossmember up over the frame rail and slide it through until the driver’s side
can be raised up over that side of the frame. Push the crossmember rearward until it is against the bed
crossmember that is directly above the truck’s axle. Now position the front angle iron crossmember across
the frame, with the slotted leg vertical, the horizontal leg at the top, and the slotted side toward the rear of
the truck. Place the angle parallel to the bar, about 9 inches apart, as shown in the diagram.
STEP THREE
Select the drivers side – side plate (4) (see diagram) and attach the rear slotted tab to the end of the rear
crossmember by threading a 1/2” bolt with a flat and lock washer into the threaded hole. Repeat with the
passenger side plate. With the center section (3) latch pin mechanism on the driver’s side, raise the center
section of the hitch up between the crossmembers. Guide the center section on up against the bottom of
the floor, inserting the round receiver tube through the 4” hole cut in the floor. Pull the front crossmember
back against the center section, Insert three 1/2” x 1 1/2” bolts in the front crossmember and through the
front legs of the center section. Place flat washer, lock washer and nut on the bolts. Leave these bolts loose.
Thread four 1 1/2” bolts with flat and lock washers into the rear bar from inside the center section. Now
install the bolts in the front side plate tabs.
STEP FOUR
Square the hitch across the frame and align two of the sideplate holes with existing holes in the truck
frame. Install two ½” bolts, flat washers and lock washers on each side. After all fasteners have been
installed, torque to 90 ft.-lbs. torque.
Begin by verifying and measuring the correct hole location in the truck bed floor. Measure from the back
end (tail gate end) of the truck bed floor by hooking a tape measure over the back of the the truck bed (not
including the tailgate) and marking the floor at the 44 1/4”. Center the measurement between the wheel
wells. This location is critical to the correct installation of this hitch, so measure, mark and saw carefully. If
the truck has a plastic bed liner, you may drill through both, but it is more difficult to accurately locate the
midpoint between the wheel wells, and to be sure that the bed liner does not move while sawing the hole.
Make a 4-inch hole at this location using a four inch hole saw, or by marking a 4 inch circle and cutting it
out with a sabersaw
Copyright 2011
B&W Custom Truck Beds, Inc.
ALL RIGHTS RESERVED 1050R 04 19 2011
STEP FIVE
To install the safety chain brackets, it is necessary to drill four ½” holes through the
truck bed floor. Drill the holes from beneath the truck, through the 4 holes nearest
the round hitch receiver tube in the center section. This will locate the safety chain
brackets in the valley section of the bed floor. Drop a U-bolt through each pair of
holes from the topside of the truck bed floor. Place a spring and lock nut on each of
the four legs and tighten the lock nuts until they are flush with the bottom of the
U-bolt.
STEP SIX
WARNING: LATCH PIN WILL NOT FUNCTION PROPERLY IF HANDLE IS NOT INSTALLED
CORRECTLY.
Install the handle from underneath the truck by inserting it through the slot in the end of the center section
toward the driver’s side rear tire as shown. Attach the handle to the latch pin as shown with the handle on the
“cab side” of the square tab welded to the pin. The head of the bolt must be on the handle side, and the lock
nut must be on the tab side. The tab is welded to the pin in an offset position so that the handle will be lined
up over the center of the pin. If the handle is fastened to the other side of the tab, the handle will not function
properly. When installed
correctly the latch pin
may be disengaged from
the ball by pulling on the
handle from the driver’s
side wheel well and rotating
the handle clockwise.
STEP SEVEN
Retract the latch pin by pulling the handle out until it stops and then rotating to the lock out position. Place
the 2-5/16” ball in the hitch receiver. Engage the latch pin by rotating the handle back to center. Be certain
the latch pin passes through the holes in the 2-5/16” ball and fully engages through the hitch receiver.