Posted on August 26, 2009 by SteeevONissan Titan, Frontier, & Xterra M226 Gears Now Available! Â It’s been a long time comming and they are Finally Here! The M226 (D44 Variant) Gears avilable for the rear of Nissan Titan Frontier and Xterra in both 4.10 and 4.56 ratios.