My question is, would you pay $5,500 for a reman tranny and torque converter or sell it as is and drop serious coin on new truck?
To me it would depend on how long would you feel you have to drive it to get your money’s worth out of that rebuilt transmission?
If you would be fine with an extra 30 or 40,000 miles then I’d say go for it. But if you think you have to put another 50 to 75,000 or even more miles on it to get your money’s worth I would say just move on. The chances are something else is going to go wrong with that truck in the interim and it’s going to become a money pit.
I was in a similar situation two years ago. GMC Acadia. 150,000 miles in the transmission blew. Spent 10k want to rebuilt transmission new differentials and other work that was needed. My feeling was that for $10,000 I’d be happy if I could get another 50,000 mi out of the vehicle. And I’m almost there with no other work done other than routine maintenance.
Now with this said I can assure you my next GM vehicle will be a Toyota or some other brand.