i have a 2008 2500 Dodge ram larimie 6.7 cummins in Australia,245000ks in total. trans waw rebuilt approx 45000k ago at a trans shop had piston seal fail on 2nd gear trans had clutch mod in 1st&2nd drum to accept an extra plate installed a shift kit ,solinoid pack low stall 3 plate converter mod and new speed sensers ,was all good fo r approx 40000k and on last trip went to reset cruise to 100 ks and trans dowwn shifted to 4th de rated engine and wont change up or down untill it is shut down . on start up it goes 1 2 4trans is fine need help please . Garrey