Rick01 1 Posted February 17 Share Posted February 17 Good morning, thanks for this information . I have always lived old Mack trucks. Just the sound was different when I was a kid , I could hear my dad coming down the road on his way home after a long day. I want a Mack but don’t know engines. I found a 99 model RD688s for sale. Please help me with this e7 engine Quote Link to post Share on other sites
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