The concern that will not develop as a manual transmission wears is making growling noises. This type of noise is not a direct symptom of wear, while the other concerns listed typically are. Popping out of gear, clutch slipping, and difficulty in shifting are common issues associated with worn transmissions. ;
The concern that will NOT develop as a manual transmission wears is D. Making growling noises. This noise is not directly related to the condition of the transmission itself, unlike the other concerns listed. Popping out of gear, clutch slipping, and difficulty shifting are clear indicators of wear.
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