You cannot, its plain gamble.
As babarhyd said its just pricing. I used to overhaul automatics but my customers were very unique, meaning, back in the day i used to sell an overhauled transmission for 7th gen for 100k, which included a rebuilt torque converter too.(bought from outside Pakistan) while the rest was soft part overhaul, valve body reconditioning and also modifying the pressure valve body to prevent the torque converter burning out (common issue)
90% of people would choke at 100k amount. The 10% that bought it were the ones that actually used their cars and not perform engine zyaratt every day.
They wouldnt even wash those cars.
As I said people in Pakistan want every repair to be worth 100 rs and parts available at galli ka nukkar.
