Frantz Caudio and Orlando Thomas each ran for touchdowns to push the Dolphins (9-2, 7-1 Pioneer) out to a 24-7 halftime lead. Bell's second scoring connection with Andrew Robustelli along with Bryant's 5-yard touchdown run made it 38-13 late in the third quarter.
Thomas had four carries for 98 yards. Robustelli finished with 93 yards on six receptions and two touchdowns. Caudio also caught a 6-yard score from Bell.
Dakota Wolf threw for 154 yards with two touchdowns and an interception for Campbell (5-6, 4-3).
It was the final game of the year for Jacksonville, which announced Friday that it voluntarily withdrew from the conference championship due to financial aid violations. The Dolphins also removed themselves from consideration for FCS postseason play.