Question 1

How do I find the correct spring rate for my 4WD?

Accepted Answer

Correct spring selection depends on your specific vehicle make, model, year, body configuration, engine, accessory load, towing use and intended use. Tough Dog's Load Summary tool gives you an indicative load summary, but final spring selection must be confirmed against Tough Dog's approved fitment data or by an authorised dealer.

Question 2

What is the difference between Foam Cell and Nitro Gas shocks?

Accepted Answer

Foam Cell shocks use a micro-cellular foam insert to reduce aeration and cavitation during sustained use. Nitro Gas shocks use low-pressure nitrogen with velocity-sensitive valving and are intended for light and medium 4WD applications. Exact suitability must be confirmed for the vehicle and load.

Question 3

Do I need a GVM upgrade for my 4WD?

Accepted Answer

A vehicle must not be operated above its approved GVM. A certified GVM upgrade may increase the vehicle's approved carrying capacity where a compliant upgrade is available. Use the Tough Dog GVM Calculator to estimate your loaded vehicle mass and remaining payload, then speak to an authorised dealer about compliant upgrade options for your exact vehicle.

TECHNICAL TOOLS

LOAD SUMMARY

WARRANTY SUPPORT.