Phone: 07 3348 3822 or Email: sales@couplemate.com.au

Caravan Trailer Parts Blog

Welcome to our caravan trailer parts help page.

If you are towing a boat trailer, caravan, camper trailer, box trailer or heavy vehicle trailer you can find articles here that will help you install, operate and maintain the quality trailer and caravan parts that Couplemate manufactures. From tips & tricks, FAQ’s to Australian Road Rules and Regulations we’ve tried to cover it all. If there’s something in particular that you’re looking for and you can’t find it here then give our friendly staff a call on 07 3348 3822 and we will try to help any way we can. If there’s something you would like to see listed on our help page or a topic you would like to be discussed then send us a message via email and we will do our best to accommodate your request.

Check out our videos here

Our Latest Know How Posts

Read our most recent posts here. Couplemate periodically posts articles relating to trailer & caravan towing safety. For archived articles on technical tips & tricks or towing product news check our Blog Categories menu.

What is my Wheel P.C.D.

What is my Wheel P.C.D.

“I have no idea what PCD is nor do I know how to calculate it?”….is an answer we hear frequently from customers. Technically, Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of the wheel studs, wheel bolts or wheel rim holes.

read more
How to measure Rim and Tyre Backspace

How to measure Rim and Tyre Backspace

Wheel backspace is an essential measurement for the manufacture of axle length. The first thing you need to do when building a new trailer is to buy your rims and types.

Alternatively, you could purchase your rims and tyres from us and we’ll do the calculation for you. One more complication, we need to know your chassis width.

read more
Loose Axle U-bolts cause Highway Havoc

Loose Axle U-bolts cause Highway Havoc

Loose axle U-bolts causes highway havoc for unsuspecting caravaners. The reality of not checking your rig before heading on your family holiday can easily become a nightmare.

Today’s article has been generated from yet another unsuspecting driver who forgot to re-tighten u-bolts after the first 300 kilometres from new.

read more
Stretching U-Bolts cause Caravanning Problems

Stretching U-Bolts cause Caravanning Problems

Caravanning problems caused by stretching u-bolts can usually be easily fixed, however, unforeseen issues can have disastrous consequences. An example is the humble u bolt that clamps the spring to the axle. The bond between the spring and the axle prevents catastrophic events at high speed.

read more
Learn the Secrets of Electric Brake Magnets

Learn the Secrets of Electric Brake Magnets

As a result of running a cable across the axle, the first magnet will lock during braking, In addition, the magnet across the axle will not lock. Learn the secrets and taboos of caravan and trailer electric brake magnets. For many years, expert Auto Electricians and Manufacturers ran magnet cables across axles. The industry believed this was the correct procedure.

read more