Things To Know Before You Pick Up and Tow Your New Trailer

Ball Size :

All trailers with a carrying capacity of 5500 lbs or less generally use a 2 inch ball.

All trailers with a carrying capacity over 6000 lbs generally use a 2 and 5/16th ball.

If equipped with a 8500 lb coupler may use a 2 in ball. Check with us.

The trailer industry uniformed ball size to 2 or 2 and 5/16th balls only. 1 7/8th are no longer used.

Ball Height:

12 and 13 in tires require 18 to 19 inches from top of ball to ground

14 in tires require 20-21 inches from top of ball to ground

15 in tires require 22-23 inches from top of ball to ground

16 in tires require 23 inches

Improper height can result in uneven weight shift placing for example on a tandem axle trailer,

more weight on 1 axle than the other. Trailers like to run level as much as possible.

( some cases may require you reversing your receiver and placing ball on top to achieve height )

Light Connections:

Surge drum brakes require just a standard flat 4 prong vehicle light connection.

Surge disc brakes require a 5 flat vehicle light connection or an adapter for the most common 7 pin

vehicle receptacle found on today’s vehicle tow packages.  Disc brakes unlike drum will lock up

just as quickly in reverse as in forward.  Therefore there is a solenoid activated by your reverse

lights that shuts off fluid while backing.  Without proper connection brakes will lock up. If a 7 pin

receptacle is not available on your vehicle you will need to wire a 5 flat plug connecting the blue

wire to your back up lights.

Electric over hydraulic braked trailers will require a 7 pin receptacle as they are wired with a 7 pin plug.

Standard electric drum brakes will also use a 7 pin plug. Not used often for marine use.

Brake Laws by State