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5w30 engine oil.
Remove transmission oil pan for filter access
It does not have a drain plug. You have to remove the pan to drain.
No. The Ram 3500 has a much heavier duty transmission, and swapping one out for another will NOT be a simple drop-in swap.
46RE
No, it's an Aisin transmission.
It uses a 46RE transmission.
A 1999 Dodge Ram transmission does not have an input speed sensor
NV 4500
No.
The automatic is a 48 RE.
Inside the transmission.