snoope
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Allsion Automatic Macks
in Engine and Transmission
Posted
brutus998,
With the "Change" over to "Granites" the "boss" is trying the new Allisons...The 2004's are 6 speeds with the Mack 400..and the 2005 has the 427 ( salesman said we might getter better mpg )....I was given the option on my 2005 and stayed with the 8LL with my 400..( I still like to shift )......
Now take into account these are "Dump Buckets" and we still "punish" them...the '04s have close to 100,000 trouble free miles (transmission wise ) BUT the mpgs suffered so far.a good 10-15 gallons a day more..
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