My 2001 Yaris (manual) has some sort of transmission problem. Toyota garage says they're not certain but think the bearings need replacement. Bought in private sale, no warranty. 1000 quid if I'm lucky. Lucky me. A mechanic I know advised that a second-hand gearbox is a better bet than diagnosing / fixing the dodgy one, because who knows what else is wrong with mine, and a second-hand one is likely good, since they so rarely go wrong. The transmission specialists I talked to said the opposite: that I should repair not replace. They cited lack of guarantee and unknown condition of the sec