What are the differences between these trucks if both have tow packages? I know 99% is the same and they both have the same towing capacity. Anything major such as axles? I assume payload is a little lower on the 250.

 

The F350 has the overload spring for a total of 6 leafs. You can have that in the F250 if you have the camper package. The F250 axle has a "rating" of 6200 lbs (F350 7280lbs). You need to get the 18" tires to get the tires to equal the F350's rated axle.

Besides the emblem on the fender, that's about it.

 

The sticker on the door pillar. My F350 CC long bed V10 has a GVWR of 11,200. A F250 set up the same way as mine would have a GVWR of 10000. No F250 has a GVWR over 10k.

 

taller block on the rear axle spring perch

 

overload spring, taller blocks over the rear axle and splines in the axle itself. from 35 to 37 spline count.

But basically it is badge engineering.

My payload usually puts me over. I have the proper registration for the payload I carry.