Towing with a 2015 Ram 2500 with air leveling
When towing a travel trailer with a 2500 Ram with air leveling and a weight distribution hitch what mode do you use for the air leveling suspension? I am looking at a tongue heavy toy hauler (1800 lb...
Forum Discussion
Manufacturer's instructions for attaching a trailer to a RAM truck with air suspension can be found on Pages 647&648 of the online 2015 RAM Truck 1500/2500/3500 Owner's Manual.
All Other 1500(Non-Air Suspension)/2500/3500 Trucks
1. Position the truck to be ready to connect to the trailer (do not connect the trailer).
NOTE: For Ram 2500/3500 trucks equipped with rear air suspension, normal ride height or alternate ride height can be used. The vehicle must remain in the engine running position while attaching a trailer for proper leveling of the air suspension system. It may not be possible to enter alternate ride height while lightly loaded.
2. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.
3. Attach the trailer to the vehicle without the weight distribution bars connected.
4. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.
5. Install and adjust the tension in the weight distributing bars so that the height of the front fender is approximately (H2-H1)/2+H1 (about 1/2 the difference between H2 and H1 above normal ride height H1).
Measurement Example
Example 2500/3500
Height (mm)
H1=1030
H2=1058
H2-H1=28
(H2-H1)/2=14
((H2-H1)/2)+H1=1044
NOTE: For all towing conditions, we recommend towing with tow haul mode engaged.
(Underline added for emphasis)
Ron
All Other 1500(Non-Air Suspension)/2500/3500 Trucks
1. Position the truck to be ready to connect to the trailer (do not connect the trailer).
NOTE: For Ram 2500/3500 trucks equipped with rear air suspension, normal ride height or alternate ride height can be used. The vehicle must remain in the engine running position while attaching a trailer for proper leveling of the air suspension system. It may not be possible to enter alternate ride height while lightly loaded.
2. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.
3. Attach the trailer to the vehicle without the weight distribution bars connected.
4. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.
5. Install and adjust the tension in the weight distributing bars so that the height of the front fender is approximately (H2-H1)/2+H1 (about 1/2 the difference between H2 and H1 above normal ride height H1).
Measurement Example
Example 2500/3500
Height (mm)
H1=1030
H2=1058
H2-H1=28
(H2-H1)/2=14
((H2-H1)/2)+H1=1044
NOTE: For all towing conditions, we recommend towing with tow haul mode engaged.
(Underline added for emphasis)
Ron
