SirRobyn0
Full Access Member
- Joined
- Dec 6, 2019
- Posts
- 6,755
- Reaction score
- 11,402
- Location
- In the woods in Western Washington
- First Name
- Rob
- Truck Year
- 1984
- Truck Model
- C20
- Engine Size
- 305
I agree that pressure plays a huge roll but higher load rater tires like D&E have more belts and much stiffer side walls even when deflated than an P. You are right that "LT" is inclusive of all LT ratings C,D&E. Back when I worked at cooper tire dealer in the 90's we sold truck tires and the only Cooper tire labeled as LT was the C rated tires, the D & E were label without LT markings. So I think of LT tires as only C rated in my head which is incorrect so I did not mean to be misleading.Doesn’t really matter what load rating of tires are being used. Just adjust the pressure for the load or conditions or the ride quality.
Short of having med duty tires like 19.5s that have a rather high min pressure requirement, any LT tire (that designation is inclusive of all load ranges in the typical 16-20” rim sizes (and larger) can be aired down reasonably as seen fit for the load or ride.
Behind that, OP just needs new springs. The more expensive they are, the softer/better ride quality you can get.
And as mentioned above, the rear is upgradeable to newer longer OE springs which will help. And likely cheaper than high $ new aftermarket springs.