My son was given a 2003 ram 2500 with a 5.9 and NV5609 manual transmission. The truck only has 112k miles. It was wrecked and it seemed to only be the front end/suspension .Tore off the driver tire and made a mess. Repaired all of that. However, when we were all done and went to drive it the transmission wouldn’t shift into or out of gear. I can shift it with the engine off no problem. You can start it in gear, but it lurches forward or reverse, depending on the gear and it will not come out of gear when sitting. It’s almost as if the clutch doesn’t fully disengage. We Purchased a new master/slave combo and same thing. One of those pre-bled ones. Went ahead and Bled it and same thing. We ordered up a new clutch (LUK) kit that had a brand new flywheel, pressure plate, shift fork/lever, new pivot pin, pilot bearing, and throw out bearing, and ordered another master/slave (lifetime heavy duty one from oriellly). Needless to say, it still does the same thing. We dropped that beast again, and inspected everything. Even reinstalled the factory shift lever and made sure the pivot pin didn’t come loose. Made sure the washer was under the new pivot pin as well. Still same thing. The second time we didn’t connect the driveshaft and shifted through all the gears and it seemed fine. I did notice that the transmission output shaft continuously spun, even in neutral. Don’t know if that’s normal or not. Never worked on the internals of a manual tranny. It also could have been spinning because it was still rotating from being in gear. IDK. We thought we had it resolved, but when we connected the driveshaft back up, same thing and right back to square one. I can start it in 2nd and drive down the road and shift without the clutch, but have to turn it off when I come up to a stop and start off in 2nd again. Any ideas? not looking forward to dropping for a 3rd time. ?