(254) 730-6400 br br HOLT Truck Centers Waco br br Holt Truck Centers Waco, (254) 730-6400 is proud to sell XL Specalized truck trailers. XL Mechanical Extendable truck trailer features the patented XL Extend-A-Trac, an XL Trailer custom engineered design, which allows for extending and retracting the truck trailer without hooking and unhooking air and electrical lines. Call Holt Truck Centers Waco at (254) 730-6400 to inquire about their large selection of truck trailers or visit www.holttruckcenters.com br br HOLT® Truck Centers has the service bays, specialized tooling and technical experts to tackle all major systems and components, including brakes, drivelines and transmissions. HOLT Truck Centers also is the authorized dealer for HOLT Truck® trucks and parts in 118 counties in Texas, providing bumper-to-bumper truck service and maintenance on most truck makes and models.