After building my transmission the truck started hesitating going into reverse afte two thousand miles then stood shifting into the upper gear rang throwing solenoid and clutch pack codes. Took it back to builder and he on his on prerogative and expense tore it apart six times and found no damage(all this done after replacing the trouble solenoid twice and returning the truck to stock) all gears clutch packs pressure tested to speck but still no working truck. Replaced several sensors and the internal wiring harness, still not shifting and working right. Tried a Tcm off working truck. Same results. Then used a transmission that was working perfect out of another truck, still same problem. Then reinstalled original built transmision with nothing new done to it... And boom works perfect!! The guys at the shop looked nervousness and confused when we picked it up from them. Needless to say I'm scared ****less of this tranny and would like to just not ruin an engine and get awful fuel mileage with emissions intact. My dad has a dpf deleat box off his 07 dodge that he used before his smarty that only deleated the dpf(can't remember brand name) which I'm wondering if by some miracle would work on my truck as well
