2026 Mack GR84B

Category, Trucks (3), vocational dump spec with tri-axle GVWR at 66,000 and delivery-level mileage showing minimal duty cycle so far. Utility, MP8 at 445 hp paired with an mDRIVE HD 13-speed that includes creeper and multi-speed reverse, points to start-and-stop work where low-speed control matters, such as tight jobsite backing, soft ground approaches, and controlled launches under load. Gearing at 3.98 favors pull and grade control over high-speed cruise, a sensible match for a dump application that sees frequent acceleration with weight. Running gear, 20k front and 46k rears with SS46 Camelback multi-leaf puts the emphasis on durability and articulation under uneven loads, with the tradeoff of a firmer ride compared to air. Wheelbase at 220 inches lands in the workable middle for body clearance and turning behavior, with tri-axle layout supporting legal payload and stability when the box is up. Walkaround items, paint and exterior trim should still present as new with 246 miles, so inspection time is best spent confirming build details and setup, transmission calibration and shift strategy for creeper use, axle and suspension fastener torque paint, driveline angles, and any early seepage at engine, transmission, and hub ends. Identification, VIN 1M2GR4NC9TM008041 and stock 70203 for paperwork match-up; ECM hours and data were not provided, so verify via dash and diagnostic pull if needed.