turns out when you buy the cheapest used transmission you can find within a lot of miles ... it's going to need rebuilt. there is a distinct rattle under load that comes with a loose bearing apparently. i guess these trans are a B!TCH to rebuild though. my goal is to get another cheap (for an NV5600) trans to rebuild and swap in, then rebuild the current for a spare. if i have any issues while rebuilding then the truck isn't down, and i bet i can hot-swap the trans in under 2hours.
i also just rebuilt the NP205 thinking it was that, but no ... so at least it's all new now too.
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