If this repair only cost you 10% I would run it until it died. If it last you 3 years,it is 3 years without car payments.
A car payment won't kill me. I don't have any now. I was going to give this car to my daughter.
I wouldn't worry about a reman transmission. Its basically like new anyway. If you think a new transmission cant/wont have any problems then you haven't dealt with enough transmissions.
A month and a half ago I put a brand new gm transmission into a 2006 Silverado with a 4l60E. With the new transmission in we couldn't get first/overdrive. It was showing a code for solenoid A, so the trans was going into limp mode. This should never have happened with a brand new trans but just because parts are new doesn't mean they'll be perfect
I've dealt with enough cars/trucks/machines to know brand new equipment can fail. Machines break down. I've dealt with enough trannys to know that the metal debris after a failure can destroy a new one in short order. Some manufacturers require trans cooler line and cooler replacement mandatory after a new or rebuilt tranny is installed, because flushing can't guarantee adequate protection from contaminating the new unit. Have you ever heard of that?
When I was told the diagnosis was bad tranny, I was also told that it should be REPLACED with new(remanned). Shop rebuild wasn't offered. Under the circumstances, I wouldn't have agreed to pay for a full rebuild either. I had agreed to have it replaced for $3K, and also told the SA I wanted the failed hard parts given back to me, and the tear down documented since I was paying for it. That's when the SA said he'd make some calls. Came back and said new tranny would be 90% covered. I know he could have told me to pound sand, so don't think I'm not grateful. I told him I appreciate that, thank you, and let me know when it's finished. Upon pick-up it was disclosed a rebuild was performed. That wasn't good enough when it was my money, but it's good enough when it's not.
I'm not trying to make a mountain of a molehill, but there was a breakdown in communication between the SA and myself which affected the decision I made. I had previously agreed to pay for a new tranny already. Just because somethings cheaper, doesn't mean I want it. That's the bottom line, and what's done is done. Depending on the quality of the rebuild and flush, chances are this tranny will see shorter than average service life. Convince me it's not a crap shoot. My wife and daughter use this vehicle. They live in our house in rural UT, which is 250 miles away from where I live during the week. I commute on the weekends. With this arrangement, vehicle reliability is very important to me. I perform the regular maintenance on all our vehicles myself so I know when/what/how things have been done. If you're a tech and were in this situation, would you have it rebuilt by someone else, or put in a reman even though it cost more? Here's a copy of the service ticket. There was a lot of metal in there.