DRW vs SRW safety, tire blowout
Every time the DRW vs SRW debate starts up, dually owners always point to the safety of having 4 rear wheels in case of a blowout while driving. What I am wondering is has anyone actually experienced ...
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Think geometry for a moment.
With the same spring set and same load the DRW actually has MORE leverage against the spring set than the SRW does so the suspension will have more sway with a DRW then a SRW. (the pivot point is the center where the axle spring pack make contact and the leverage point is the outside of the tire)
However most will claim a DRW is "more stable" because twice as many sidewalls reduce the sidewall flex considerably. The reduction in sidewall flex is much greater than the additional suspension leverage resulting in reduced sway or "more stable" ride.
For SRW's switching to commercial rated tires with fairly to very stiff sidewalls is equally or more effective.
- Mark0.
Not sure what truck we are talking about, but on the Ram, more leaves on the DRW than on the SRW. And I switched to 19.5s on my 2020 Ram SRW. My 2022 Ram dually with the factory tires has less side to side sway than the 2020 with commercial tires.
