No back­slid­ing

Herald Sun - Motoring - - Front Page -

AL­LI­SON Trans­mis­sion is fit­ting a sec­ond re­verse gear on its 4700 and 4800 gear­boxes to give driv­ers more con­trol on steep grades. It says the deep re­verse, avail­able from mid-next year, will give greater con­trol and en­gine brak­ing on steep gra­di­ents, and in­crease ma­noeu­vra­bil­ity in tight spa­ces. With a me­chan­i­cal ra­tio of 17.12, the sec­ond re­verse will have an ef­fec­tive torque con­verter-mul­ti­plied ra­tio up to 32.5:1.

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