Could you provide more context or clarify what you mean by "tranny jerks it"? I'm here to help with any questions or concerns you might have.

If you're referring to a transmission issue in a vehicle, "jerks" often describe an unpleasant, abrupt sensation when shifting gears. If that's the case, it might indicate a problem with the transmission fluid, filter, or issues with the gear system.

The phrase "tranny jerks it" could be interpreted in a few ways, but without more context, it's a bit challenging to provide a specific response.