Full locking rear differentials

[JimT]

(07-15-2026 )Volvo8873 Wrote:  Never thought of the letting the air out of the tires for better traction. It’s simple things like that I never think of! Lol

It's not a common thing to see done on class 8 trucks, at least not outside of specialized situations, due to the gross weights involved. Probably more useful when empty. However under inflation is a very common thing in the 4x4 / off-roading world. Especially when driving over sand (beach, dessert, etc...).