I do trust the shop where my transmission is at. They are very well known around here and have been in business since 1967. They are willing to put what ever parts I want in it. So long as it isn't he chinesse nasty parts they will stand behind it. My problem is I don't know what is a good upgrade vrs a bad idea. I don't know anythinig about an automatic. Not totaly true, but true enough.
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