if you're gonna replace the diff with an LSD i recommend getting new bolts for it. they have a very fine thread. get a new speedo gear. it's easier to install a new one than to try and take it off your old diff. it cracks very easily. this way you have a spare if you deicde to try and take the original off of your open diff. also, syncro springs would be a good idea. i had about 110k on my tranny when i split it open. after i installed the tsx 6th and lsd, i had issues with the car popping out of 5th and 6th on the highway. the syncro's were fine it's the springs that needed to be replaced. i ended up dropping the tranny again and tearing it apart again just to replace the spring...
has the tranny been opened up before? there are a few other things i would recommended replacing if the tranny has been opened up prior to this install.
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