B&W Trailer Hitches
1216 Hawaii Road / PO Box 186
Humboldt, KS 66748
620.473.3664
800.248.6564
Fax:620.473.3766
NOTE: We recommend reading instructions before beginning the installation.
WARNING: The tow vehicle’s towing capacities should under NO circumstances be exceeded.
TurnoverballTM Gooseneck Hitch
Call or Email us for Installation Support
Installation Instructions
Model 1050R
Chevrolet & GMC (1988 - 1998)
1/2 3/4 & 1 Ton, Short Bed Trucks
Chevrolet & GMC (1999 - 2000)
3/4 & 1 Ton Heavy Duty Short Bed Trucks
Old Body Style
Mounting Kit Box (GNRM1050)
ITEM DESCRIPTION QTY
1 Driver Side Plate 1
2 Passenger Side plate 1
3 Front Crossmember 1
4 Rear Crossmember 1
Mounting Kit Bolt Bag
1/2” Cap Screw 15
1/2” Lock Washer 19
1/2" Flat Washer 15
1/2” Finish Nut 9
NOTICE: This product was designed to t vehicles in their original, “as
manufactured” condition. Compatibility with vehicles having replacement parts,
or other modications is not guaranteed. Inspect vehicle for modications before
installation of this product.
Center Box (GNRC950)
ITEM DESCRIPTION QTY
5 Center Section 1
6 2-5/16" Ball 1
7 Latch pin Handle 1
hitches@turnoverball.com
www.turnoverball.com
Safety Chain Kit Bolt Bag
8 1/2” U-Bolt 2
9 Conical Springs 4
10 1/2” Lock Nut 4
5/16” X 3/4” Carriage Bolt 1
5/16” X 3/4” Cap Screw 1
5/16” Lock Nut 1
BEFORE INSTALLING
OVERHEAD LIFTING DEVICE
An overhead-lifting device, such as chain falls, engine hoist, or cable come-a-long, can
be used to lift the center section of the hitch in place. Lower a loop of rope or chain
through the 4” hole in the truck bed oor and attach it to the latch pin in the round
hitch receiver tube in the center section. Use the lifting device to raise the center
section until the round hitch receiver tube that protrudes from the center section
ts in the 4” hole in the truck bed oor. Maintaining upward pressure may facilitate
fastening the crossmember to the center section, especially if the truck bed oor has
been distorted downward from heavy use. If you use an overhead-lifting device, it
should be disconnected before squaring the center section across the frame, installing
the sideplates and torquing fasteners.
WARNING
Most trucks have FUEL LINES and/or BRAKE LINES and/or ELECTRICAL WIRES located along the frame rails where
B&W Turnoverball™ hitches install. Carefully examine the location of fuel lines, brake lines and electrical wires
BEFORE INSTALLATION. Be certain you will not damage fuel lines, brake lines or electrical wires when positioning
hitch components, drilling holes, tightening fasteners, and lifting and lowering the truck bed. The fuel tank vent,
located on top of the gas tank, can be easily damaged during the installation of the hitch components. Care must
be taken when positioning the front crossmember and center section components.
Warning
On Short bed trucks, BEFORE INSTALLING THIS HITCH, check for adequate turning clearance between the front of
all of your trailers and the truck cab.
WARNING
DO NOT invert the ball in the socket when carrying heavy loads on 2 wheel drive trucks. The ball may hit the top
of the differential. Remove the ball from the socket before loading. A plug for the socket is available from B & W.
INSTALLATION INSTRUCTIONS
STEP ONE
Begin by verifying and measuring the correct hole location in the truck bed oor. Measure from the back
end (tail gate end) of the truck bed oor by hooking a tape measure over the back of the the truck bed (not
including the tailgate) and marking the oor 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 difcult 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
STEP TWO
From the underside of the truck, position the two crossmembers (3) and (4), across the top of the frame rails,
between the bed and frame. Start with the rear crossmember, (4) 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 (1) (see diagram) and attach the rear slotted tab to the end of the rear
crossmember by threading a 1/2” bolt with a at and lock washer into the threaded hole. Repeat with the
passenger side plate. With the center section (2) 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
oor, inserting the round receiver tube through the 4” hole cut in the oor. 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 at washer, lock washer and nut on the bolts. Leave these bolts loose.Thread
four 1 1/2” bolts with at 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, at washers and lock washers on each side. After all fasteners have been installed,
torque to 90 ft.-lbs. torque.
STEP FIVE
To install the safety chain brackets, it is necessary to drill four ½” holes through
the truck bed oor. 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 oor. Drop a U-bolt through
each pair of holes from the topside of the truck bed oor. Place a spring and lock
nut on each of the four legs and tighten the lock nuts until they are ush with the
bottom of the U-bolt.
STEP SIX – INSTALL LATCH PIN RELEASE HANDLE
WARNING: LATCH PIN WILL NOT FUNCTION PROPERLY IF HANDLE IS NOT INSTALLED CORRECTLY.
Install the latch pin release handle by inserting it through
the slot in the end of the center section on the driver’s side
of the truck. Align the handle eyelet with the square hole
in the latch pin so the handle is in line with the latch pin as
shown. Secure the handle to the pin with the 5/16 X 3/4”
carriage bolt and 5/16” locking ange nut as shown. Note:
The included 5/16” cap screw can replace the carriage bolt
if wrench access on the “cab side” of the handle is limited.
Tighten the nut until it is secure. Do not over-tighten and
deform the handle eyelet.
TAB
LATCH
PIN
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.
DRIVER SIDE
IN−LINE
Copyright 2014
B&W Custom Truck Beds, Inc.
ALL RIGHTS RESERVED
1050R 05 01 2014