i'm not sure for that transmission, but i know for my trans, (GM 3T40) the band adjustment is the piston itself. if you look at the shaft on the piston, you might notice a couple of lines cut out on it. If so, that's the adjustment.
NO
The reverse band adjustment is inside the transmission. The oil pan needs removed to access.
In old Dodges 1950s to 1980s there was one adjustable band for low reverse and if it needs adjustment its worn out. Newer cars, NO.
Maybe just a linkage adjustment Will it start in Neutral, Reverse, or Drive??
The manual shift transmission does not have a filter.
It is inside the oil pan on the transmission.
There can be several things that will cause your 2000 Dodge Durango transmission to slip into reverse. A malfunctioning slave valve can cause this to happen.
Inside the transmission, just above the pan.
no There is a magnetic pickup on the transmission
If same engine, yes.If same engine, yes.
ATF+3 or +4
A Dynasty would have an a413 or an a604.