Transmission?

I have a 2000 mustang gt, small v8, I keep the car maintained, now, lately when I drive and get to 40 to 42 mph, the rpms race to 3 thousand before it will shift. I have it checked and rechecked, one guy said the transmission needs to be rebuilt at $1900, the car is in excellent condition, only 141.000 miles. Just don't know what to think, Does anyone have any ideas, any assistance is greatly appreciated. Please don't pick on me to much Im 71. thanks
 
If asking for an educated guess the problem is a bad lock up torque converter.

But let me ask you. Are you planing to do the work yourself?

IF you were planning to do the work yourself then you might decide to drop the transmission to replace just the torque converter.

But if you were paying for a professional to do this large amount of work, likely I would decide to have the entire transmission rebuilt just based upon the car's mileage.

The other issue to consider is it's possible that the torque converter has failed due to fluid contamination. IF true there's a possibility other parts are affected.

141k for an automatic transmission is a fantastic service life. But it's not all that bad nor is it all that un-common for a Ford automatic transmission to fail at that mileage.

My suggestion is to take it to another transmission shop and just ask the question if the transmission could be repaired with just a new torque converter.
 
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If asking for an educated guess the problem is a bad lock up torque converter.

But let me ask you. Are you planing to do the work yourself?

IF you were planning to do the work yourself then you might decide to drop the transmission to replace just the torque converter.

But if you were paying for a professional to do this large amount of work, likely I would decide to have the entire transmission rebuilt just based upon the car's mileage.

The other issue to consider is it's possible that the torque converter has failed due to fluid contamination. IF true there's a possibility other parts are affected.

141k for an automatic transmission is a fantastic service life. But it's not all that bad nor is it all that un-common for a Ford automatic transmission to fail at that mileage.

My suggestion is to take it to another transmission shop and just ask the question if the transmission could be repaired with just a new torque converter.
Thanks for the information. I will go to another shop and see what they say. Never thought of the torque converter, one shop owner just told me to drive it and when I was ready bring it back for a rebuilt, he only uses ford parts. The other shop just said to rebuild it. I must admit, I was a little upset, because it only has 141,000 miles, and thought the trans would last longer. Thanks again, will keep and up date, as soon as I figure the best way to go. I will probably just have it rebuilt, It will be in a month or so. THANKS AGAIN, have a good weekend