towing capacity for dodge ram 2500

ScottG wrote:
Those tires are killing your tow capacity. Even if you change gears they will still decrease your ability.
If your concerned then get a set of tires no bigger than 285/75 - and only go that big if you have added power.

Exactly!

Going from 3.73 to 4.10 may give another 2000 lb tow capacity but that comes only with stock LT265/70-17 E at about 31.5" diameter tires.

Part of the tow rating numbers is determined by engine rpms.
stock 31.5" tires and 3.73 ratio @ 60 mph = 2387 rpm direct drive.
...................... 4.10 ratio @ 60 mph = 2624 rpm dd.

35" tires with a 4.10 gears at same speed = 2361 rpm dd.

Point is the 4.10/35" tires puts the engines rpm back in rpm range for stock tires.
Now if you used the 4.56 gear set/35" tires = 2626 rpm. Now you have gained a 2000 lb tow capacity. However 35" tires are heavy/tall with lots of parasitic drag compared to stock tires.

One thing in your favor is the Cummins. Tall heavy tires don't affect the diesel power like a gasser.

Just something to chew on

What about swapping the tires just when towing the TT ?

Those tires are killing your tow capacity. Even if you change gears they will still decrease your ability.
If your concerned then get a set of tires no bigger than 285/75 - and only go that big if you have added power.

What is gwar??? Do you mean GVWR?

In any case, I agree with Don....changing tires might be less costly than a new 3rd member.

Ron

Changing to 4.10 gear ratio will be a big help. Better still would be to go back to stock size tires, then probably the gear change would not be necessary.