I have an 08 Aspen (basically Durango) with a Hemi. It did not come with a trailer hitch package (I added one aftermarket). I read that the OEM trailer package comes with 3:92 gears as well as an oil cooler, tran cooler and power steering cooler.

I thought I read that all Durango's/Apsen's actually came with the coolers, the only thing the trailer package adds is the hitch and the 3:90 rear. When I look in the engine bay, I see what looks like extra coolers in addition to the standard radiator. Can anyone confirm if the coolers come regardless of the trailer package or not?

I tow about 5000lbs and it seems to work fine even if I have the 3:55 it is still rated at 7500lbs. But I am worried I don't have the coolers and could potentially damage the motor/tranny.