Well the trans on my 06 Express is acting up, when it warms up it starts to shift erratic and slips. It was rebuilt 189,000 miles ago. The van has 390,000 miles. The body has Canadian weight saving in full swing and the steering box has a bottle a week drinking habit. The engine is the highlight, besides the whining Gates replacement water pump (whatta ***** job) and some glowplugs it runs well. I don't see a diesel replacement in my future but know I will regret letti ng the best Duramax go the way of my 70 Cuda and 73 Trans Am of my past. I'm torn between going all in or moving on. The pandemic has sidelined my business so the decision is at least a non-panic one. Any thoughts?