How an opposed engine works in Commer Knocker

Commer was a British truck manufacturer founded in 1905 as Commercial Cars Limited. Their primary business was manufacturing commercial vehicles, including car-derived vans, through to medium and heavy trucks and buses. In addition, they made engines, including their most famous, the TS3 Diesel.  If you’ve got a senior’s card, you’ll undoubtedly remember the distinct sound…

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How Hub Reduction Differentials Work

Regular readers would recall that we’ve reported on several tri-drive units operating in high productivity heavy road train applications over the last few years. Truth be told, the site of a tri-drive or “tridem” road train with four to six trailers in tow is indeed an impressive sight. Their daily payloads undoubtedly would have made…

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