B&W Trailer Hitches 1257R User Manual
Model 1257r, Turnoverball, Gooseneck hitch installation instructions

Model 1257R
www.turnoverball.com
Call or Email us for Installation Support
800.248.6564
Turnoverball
TM
Gooseneck Hitch Installation Instructions
B&W Trailer Hitches
1216 Hawaii Road / PO Box 186
Humboldt, KS 66748
P:620.473.3664
F:620.473.3766
Toyota Tundra (2007 - 2014)
NOTICE: The 2-5/16 Ball cannot be turned over and stored in the
socket of this hitch.
NOTICE: At this time no accessories, including the model
RVK3000 RV Companion 5th wheel hitch and the RVK3400 slider,
will work with this model of turnoverball™ except:
• 4” Toyota Hitch Extender (part# GNXA4585)
• RV Companion 5th wheel hitch (model RVK3500),
with special socket post.
NOTE: We recommend reading instructions before beginning the installation.
WARNING: The tow vehicle’s towing capacities should under NO circumstances be exceeded.
Mounting Kit Box (GNRM1257)
ITEM
DESCRIPTION
QTY
1
Driver Side Plate
1
2
Passenger Side plate
1
3
Crossmembers
2
4
Crossmember Brace
2
Mounting Kit Bolt Bag
5
1/8” Frame Spacer
2
6
1/4” Frame Spacer
2
7
Exhaust Relocation Bracket
1
8
Wire Relocation Bracket
1
5/16” Carriage Bolts
1
5/16” Flange Nut
1
1/2” X 2” Carriage Bolt
12
1/2” Finish Nut
12
1/2” Lock washer
12
1/2” Flat Washer
12
5/8” X 1-1/2” Cap Screw
4
5/8 Finish Nut
4
5/8” Lock Washer
4
5/8” Flat Washer
4
Center Box (GNRC1256)
ITEM
DESCRIPTION
QTY
9
Center Section
1
10
Latch Pin Handle
1
11
Ball Socket Plug
1
12
2-5/16” Ball
1
Safety Chain Kit Bolt Bag
13
1/2” U-Bolt
2
14
Conical Springs
4
15
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
NOTICE: This product was designed to fit vehicles in their
original, “as manufactured” condition. Compatibility with
vehicles having replacement parts, or other modifications
is not guaranteed. Inspect vehicle for modifications before
installation of this product.