bobo Posted July 31, 2010 Share Posted July 31, 2010 If I were to change my rw713 E9 tranny from 8LL, what would be the better 12spd or mack 18? would I have to replace the bell housing? I have 4.42(92) so I know Id have to change out rears. bobo Quote Link to comment https://www.bigmacktrucks.com/topic/15084-8ll-to-2018/ Share on other sites More sharing options...
ThaddeusW Posted July 31, 2010 Share Posted July 31, 2010 If I were to change my rw713 E9 tranny from 8LL, what would be the better 12spd or mack 18? would I have to replace the bell housing? I have 4.42(92) so I know Id have to change out rears. boboGo with the T2 or T3 18 speed as parts are easy to get. Maintenance is a costly issue and parts availability is key. Quote -Thad What America needs is less bull and more Bulldog! Link to comment https://www.bigmacktrucks.com/topic/15084-8ll-to-2018/#findComment-60712 Share on other sites More sharing options...
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