Frequently Asked Questions About Kenworth T660 Mud Flaps
Will these mud flaps fit my specific year Kenworth T660, and what about aftermarket bumpers?
Our Kenworth T660 mud flaps are designed to fit all T660 models from 2008-2016. However, fitment can vary if you have aftermarket bumpers or custom modifications. Standard mounting brackets work with OEM bumpers, but aftermarket bumpers may require universal mounting brackets or slight modifications. We recommend measuring your current setup or contacting us with your specific bumper model for confirmation.
What's the difference between rubber and stainless steel mud flaps, and which holds up better?
Rubber mud flaps are more flexible, cost-effective, and absorb impact well, making them ideal for general highway use. They typically last 2-3 years with regular use. Stainless steel mud flaps offer superior durability, won't crack in extreme cold, and maintain their appearance longer - often 5+ years. Steel flaps are heavier and create more spray deflection but can be noisier. Choose rubber for budget-friendly protection or stainless for maximum longevity and professional appearance.
Do I need special tools or professional installation for these mud flaps?
Most T660 mud flap installations can be completed in 30-45 minutes per side with basic tools: drill with metal bits, socket set, and measuring tape. Pre-drilled mounting holes align with factory positions on most models. The main challenge is accessing mounting points behind the wheels - having the truck on a lift or using jack stands makes installation much easier. Some drivers report difficulty with rusted bolts on older trucks, so have penetrating oil ready.
What size mud flaps do I need, and will they clear my tires during turns?
Standard T660 mud flaps come in 24" x 30" or 24" x 36" sizes. The 30" length works for most highway applications, while 36" provides extra coverage for off-road or construction use. Ensure at least 6-8 inches of ground clearance when loaded. For wide-base single tires or super singles, verify you have adequate clearance from the tire edge - typically 2-3 inches minimum to prevent rubbing during turns or suspension compression.
Are weighted mud flaps worth the extra cost, and do they really reduce spray?
Weighted mud flaps (anti-sail design) significantly reduce flapping at highway speeds, which decreases wear and improves spray control by up to 40% according to driver reports. The added weight - usually a rubber or steel strip at the bottom - keeps flaps hanging straight even in crosswinds. While they cost 20-30% more than standard flaps, drivers report they last longer and reduce rock chips on trailers. They're especially valuable for long-haul operations or in states with strict spray suppression requirements.
