Mabry lettered with the Razorbacks from 1986 to 1989. Mabry earned All-Southwest Conference honors in 1988 and 1989 in addition to his All-America honors in 1989. Mabry anchored an offensive line that won back-to-back Southwest Conference titles and Cotton Bowl Classic appearances and helped the Hogs average 453 yards per game in offense. Mabry is also a member of the 1980s Razorback all-decade team.
Following his playing career, Mabry had his jersey retired (#56) at Briarcrest; he also served as the honorary captain for the Arkansas-Auburn football game on October 15, 2005. He now resides in Little Rock, Arkansas.