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JD's realistic semi truck chassis V2

-comes with my model of a small cam Cummins and my SS-18A 18 speed dual range transmission with a functional splitter and reverse based off of an Eaton Fuller RTLO-16918
-rear end ratio is 4:1
-update exhaust has been fixed and now works correctly
-update added fully functional power divider to the front drive axle that will need to be locked for off road use

operation is very complex so i don't expect this to be a very useful creation

-use num keys 1-4 to select main gears,7 for LO and 0 is reverse
-use num enter to return to neutral for all gears except reverse which is a normal clutch gear
-num+ will toggle the range selector turning gears 1-4 into 5-8
-num/ will split every gear including reverse

Ratios
LL-13.68:1
LH-12:1
1L-9.12:1
1H-8:1
2L-6.08:1
2H-5.33:1
3L-4.56:1
3H-4:1
4L-3.42:1
4H-3:1
5L-2.28:1
5H-2:1
6L-1.52:1
6H-1.33:1
7L-1.14:1
7H-1:1
8L-0.86:1
8H-0.75:1