well, i've the 1974 Corolla KE-20. Everything inside is still stock, with the 3K motor. the car's gearbox is totally screwed. its stuck on either gear 2 or 3. i cannot change gear. Clutch depressed, engine turned off, i cannot change gear. its not the first time this has happened. the last time it happened, my mechanic took the gearbox out and freed the gear. then it was back to normal again, but it happened again. i know this didn't happen because there was insufficient gear oil, because only 2 weeks before this happened, i changed the gear oil, and it was topped up to optimum level. among the symptoms before this happened was a sound from the gearbox was quite audible. sounded like chain being pulled thru a pulley. and this came up only in high revs. the car can still be driven now, but only in either gear 2 or 3. i can't shift to reverse too. i need help, has anyone faced this problem with the stock gearbox, and solutions for it?! change the gearbox? or can it be repaired? if repaired, what could be done? and if i'd have to change it, what would be the best 5 speed gearbox to fit in? and please explain everything i'd need to do. i have limited knowledge in this issue, and i'd need to make it legal too. the car will be going thru a Malaysian PUSPAKOM change of ownership check as soon as i get it done.
ps. i don't want to change the engine. i just love how it sounds!