Frequently Asked Questions About Kenworth T660 Hub Adapters

What years and models are these hub adapters compatible with?

Our Kenworth T660 hub adapters are designed to fit 2008-2016 T660 models with standard 10-lug hub patterns. They're compatible with both day cab and sleeper configurations. However, trucks with aftermarket suspension modifications or non-standard wheel setups may require additional measurements. We recommend checking your current hub bolt pattern and pilot diameter before ordering to ensure proper fitment.

Are these hub adapters made from aluminum or steel, and which is better for my application?

We carry both 6061-T6 aluminum and heat-treated steel hub adapters. Aluminum adapters weigh approximately 40% less than steel versions, reducing unsprung weight and improving fuel efficiency. Steel adapters offer maximum durability for severe-duty applications and heavy loads. For standard highway use, aluminum provides the best balance of strength and weight savings. For vocational trucks or extreme heavy-haul applications, steel remains the preferred choice.

Do I need special tools or professional installation for these hub adapters?

Installation requires basic hand tools including a torque wrench, socket set, and hub puller. The process typically takes 2-3 hours per axle for experienced mechanics. Critical steps include proper torquing to manufacturer specifications (typically 450-500 ft-lbs for wheel studs) and ensuring the adapter sits flush against the hub face. While DIY installation is possible, we recommend professional installation to maintain warranty coverage and ensure proper wheel alignment.

What thickness hub adapter do I need to achieve the stance I want?

Hub adapters typically range from 1.5 to 3 inches in thickness. A 2-inch adapter is most common for achieving a wider stance without rubbing issues. Consider that each 1-inch adapter moves your wheel out 1 inch, affecting turning radius and potentially requiring fender modifications. For show trucks, 2.5-3 inch adapters create an aggressive look but may require trimming or rolling fenders. Always verify local regulations regarding track width modifications.

Will hub adapters affect my truck's warranty or DOT compliance?

Quality hub adapters that meet SAE J694 standards and are properly installed typically don't void manufacturer warranties, though you should verify with your dealer. For DOT compliance, ensure the adapters don't extend your track width beyond legal limits (typically 102 inches total width). Keep documentation showing the adapters meet industry standards. Some states have specific regulations about wheel spacers and adapters, so check local laws before installation.