dodge brakes

If you are using the brakes, you need to gear down. You should be able to descend a steep grade without keeping your foot on the brake if you have geard down properly.

25% grade? I think you will have trouble with any truck at that grade.

You have huge brakes but there's not much that's going to help you with that kind of grade. Your lucky though that you have the first year of Dodge trans that is exhaust brake capable and one would help you greatly in this regard.
Once you have one you'll wish you'd have gotten one earlier!

If you have a diesel, an exhaust brake might help. Not sure what your options are for brake discs and pads. You could look into vented rotors. 25% grade - WOW!

Is this an automatic? Does the trans have a tow haul mode? Was it engages? Do you have 4x4? Were you in low range? Do you have poor or worn out brake pads?

In many auto transmissions engaging tow/haul keeps the torque converter locked in to greatly improve engine compression braking. Obviously, if you have low range, that will further enhance engine braking. If you have an exhaust brake it is more effective at higher engine RPM so low range helps there too to get the engine RPMs up.
You may need to look into upgraded brake pads and rotors if you regularly need this kind of stopping power.
25%! Wow! that's a hill for 12,500 pounds.