Brandt Posted August 13, 2013 Share Posted August 13, 2013 (edited) New here and found this site out of desparation. Blew a steer tire yesrteday and am looking for parts for a 91 RD 690. The truck is set up as a 12yd dump truck and is ALL MACK. EM-7 eng - 300 HP. Mack 12 speed w/ 6 reverse gears. Mack 4.42 diffs , I think 48,000 lbs - maybe 46K?I have a bunch of questions but will troll around a bit rather than show my ignorance right away . Edited August 13, 2013 by Brandt Quote Link to comment Share on other sites More sharing options...
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