Replace transmission bearing

SOURCE: 2007 Chrysler T&C transmission -

The best thing is to scan the Transmission Control Module (TCM) using a diagnostic equipment connected to the data link connector of the car, in order to pull out all Diagnostic Trouble Codes (DTC) stocked in memory. Then you will be full informed about root cause of the problem: rough shifting and shudders mainly in the 1st gear. So, you will know all pieces out of order, and / or necessary reparations. After bad pieces replacement & reparations, you will need to reset the TCM by erasing all DTC from memory.

See also: Drive Train: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM) Service Bulletin Number: 1803807 NHTSA Number: 10022180 Model Years Affected: 2007 Date of Bulletin: 07/2007 Bulletin Summary: CHARGING SYSTEM VOLTAGE. ERASING AND REPROGRAMMING OF THE POWER TRAIN CONTROL MODULE (PCM).
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Drive Train: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM) Service Bulletin Number: 2100208 NHTSA Number: 10024065 Model Years Affected: 2007 Date of Bulletin: 03/2008 Bulletin Summary: FLASH: TORQUE CONVERTER SHUDDER WITH COORDINATED CHANGE OR 1-2 OR 2-3 SHIFT HARSHNESS.
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Drive Train: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER Service Bulletin Number: 2101207 NHTSA Number: 10022416 Model Years Affected: 2007 Date of Bulletin: 08/2007 Bulletin Summary: MIL ILLUMINATION WITH DIAGNOSTIC TROUBLE CODE P0741- TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE.
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SOURCE: I bought the car about

Sounds like you have a torque convertor not engaging correctly. The may have installed a defective one.

SOURCE: THE TRANSMISSION GOES IN LIMP

You may need to have the transmission control module reprogrammed.