The Original
®
2”
178”
2516”
Interchangeable Hitch System
U.S. PATENT 4,596,406 and 5,419,576
CANADIAN PATENT 1,221,393 and 2,137,872
These products comply with
Regulation V-5, SAE J684
Thanks for choosing Convert-A-Ball® as your hitch system for your towing needs.
We appreciate your choosing our American Designed and Manufactured products.
SYSTEM ASSEMBLY
#600
2-5/16” Ball
Shank Hole
Non-Removable Pin
in Locked Position
Ball
#400
2” Ball
Non-Removable Pin
In Extended Position
#300
1-7/8” Ball
Shank
Lock-Washer
Nut
Cotter Pin
2-1/4”
1-7/8”
2-1/2”
2-1/2”
3-1/2”
Stem Hole
2- Year
WARRANTY
All products are
warrantied for material
and workmanship to
the original owner/
purchaser of the product.
Fair wear and tear of
product excluded.
Convert-A-Ball® will
repair or replace any
part upon inspection.
We are not responsible
for freight of returned
items. We will cover
shipping charges to
return repaired or new
parts when a defect is
determined to be
covered under this
policy. Our guarantee
covers only the single
defective part, not an
entire set.
~~~~~~~~
TO RELEASE PIN
Push pin on the
dimple and then
pull through
until the ball
unlocks.
#100
3/4” Reg. Shank
Rated 3,500 lbs
#101
3/4” Long Shank
Rated 3,500 lbs
#103
3/4” Forged Shank
Rated 5,000 lbs
#102
1” Forged Shank
Rated 10,000 lbs
Stainless Steel 3/4” Shank rated at 5,000 lbs.
Stainless Steel 1” Shank rated at 10,000 lbs.
#105
1” Long Shank
Rated 10,000 lbs
Safety Information - failure to follow these instructions will void guarantee
and may cause a safety hazard. Read all instructions before mounting your system.
Diameter of the hole into which the ball is installed MUST NOT exceed the diameter of the shank stem by
more than 1/16”. Maximum hole diameter for 3/4“ shank is 13/16” and 1“ shank is 1-1/16”. Never install a
shank without a lock-washer. Always install cotter pin after tightening nut. Never exceed the load rating
of the shank when towing. The 2-5/16” Ball is designed to NOT fit on a 3/4” shank. Do not try to force
a 2-5/16”ball on a 3/4”shank. Never weld any part of a Convert-A-Ball® system to a vehicle. Do not fasten
safety chain or other attachment to ball, shank, nut or stem. It is recommended to remove ball (not shank)
when not in use for towing to avoid weathering and loss by theft. Also, use a regular plastic ball cover or
a Convert-A-Ball® plastic shank cover. Check shank tightness before each use and after every 100 miles of
continuous towing. At each towing hook-up, lubricate ball and coupler to minimize wear. Check to ensure
the coupler does not appear to bind on the ball and will turn freely.
SYSTEM INSTALLATION INSTRUCTIONS
1) Always mount shank with the shank hole parallel with the bumper.
2) To prevent shank from turning, insert a punch or screwdriver
into shank hole and hold parallel to bumper when torquing nut.
3) Place lock-washer on the stem and start threading nut.
4) Torque nut to 120 ft. pounds. Install Cotter Pin in stem hole.
5) Before installing, lubricate inside of ball and pin with a light coat of grease.
Place ball on shank and push pin through shank hole by hand.
6) To remove or change balls, push ball pin on the dimple. It may
take a screwdriver or punch to initially push the pin. Pull the
pin through the shank by hand and lift the ball off.
A
B
Press dimple
to unlock ball
The Original
C
Remove ball
and replace
with desired ball
D
Ball secured
for towing
2”
1
7”
8
Interchangeable Hitch System Products
RECEIVER
2
5 ”
16
This will help
prevent loss from
theft, keep them
secure, and you will
remember where
you put them.
Metal Brackets
2-Ball Bracket
3-Ball Bracket
Powder coated black
with holes drilled
for easy mounting
in your vehicle.
Storage Box
3-Ball Plastic Box
BALL MOUNT
TOP VIEW
Base mounts
fasten inside your
vehicle with cover
that snaps in place
over the stored balls.
Shank Cover
Red, Black or Grey
SHANK
Press locking
pin in place
®
BUMPER
For extended
product life and
best performance,
when not in towing
use, store your
interchangeable
balls in one of our
convienent storage
products also
available.
Plastic form-fitting cover
protects shank while
balls are in storage.
For Many More Original Convert-A-Ball® Products
Contact your local Convert-A-Ball dealer or
Call 1-800-543-1732 or Fax 1-308-254-7194
Made in The U.S.A.
MASTER TRADING, INC
Sidney, Nebraska