i have a couple of the dellow conversions with celica box, i think it's T5 not T50 though, they are great, tough, good shift, and great ratios

the condition of the gearbox is obviously going to determine the likely hood of failure, if you rebuild a 60 series your gonna get a good life span out of it even behind a really tough a-series

there's a good reason why there is limited experience racing auto's on ashphalt, cause just driving one around town you can tell it's a really crappy idea