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Transmission fluid and filter change: Miles or time? Or both?

I'm pretty sure the service schedule for replacing the transmission filter for a 94-96 B-Body with a 4L60E automatic transmission is an interval in miles only. I don't have the number handy at the ...
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1answer
156 views

4L60E fluid change

I'm going to change the transmission fluid on a '96 B-Body with a 4L60E transmission and an LT1 engine. The transmission fluid pan does not have a drain plug. I'd rather not drop the pan unless I ...