Originally Posted by Swamp dogg
Yes a 1/2 inch of drive shaft rotation. I just started noticing the noise yesterday. If this seems normal then ok. I just never noticed this noise before the gear swap. Its more noticeable when backing up. Maybe i need to get the back lash checked. The gears have a little over 500 miles on them. Thanks for the info.
If you just had the gears done and now it is making noise then I would definately get it checked out. According to your original post you didn't mention that you had just had work done, which can be a huge red flag.
Under normal wear and mileage it could be normal wear over time and "slack" in the drivetrain adds up.
In the future please add as much detail as possible when describing an issue so we can assist you the best we can. Also, keep in mind that all vehicles, even same make/model, will have some unique idiosyncrasies. This is why it is good to know your vehicle so when something "changes" or doesn't feel normal you can start to inspect things. Giving as much information as possible such as latest repairs done and anything out of the norm will be of huge help when asking for help diagnosing a problem or suspected problem.