My Ram has the 3.21 axle, and I've had zero issues when towing. I forgot to add the anti-slip differential when I ordered the truck, but that's not been an issue either.
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2013 2619
80 watt solar panel/swing hitch/low profile A/C.
Enduro 4445 caravan mover
2016 Dodge Ram 1500 V8 Hemi
Installed powered folding tow mirrors
Stopped playing with airplanes, now I just enjoy watching them fly by.
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