Forum Discussion
MikeJinCO
Mar 23, 2017Explorer
+1 to Reddog. I have a 3500 Dually and I installed the standard Helwig sway bar. It goes on easily and does a great job. The other term for them is anti-roll bar ie body roll. Most trucks come with a front anti-roll bar but without a rear as the heavy motor up front particularly a diesel wants to roll in a turn where the lighter/unloaded back end doesn't. So add a camper and the weight distribution is reversed, lighter front than rear and guess which wants to roll more.
For us the rear sway/anti-roll bar should be at least as large in diameter as the front it not a little larger. Keep in mind that the stiffness of it is in proportion to the 4th power of the diameter so a little goes a long way. One to the fourth is 1 where 1.25 to the fourth is 2.44 so it is almost 2.5 times as resistant roll. There is lots of other engineering involved, but it takes full books to explain it all, talk to Helwig.
For us the rear sway/anti-roll bar should be at least as large in diameter as the front it not a little larger. Keep in mind that the stiffness of it is in proportion to the 4th power of the diameter so a little goes a long way. One to the fourth is 1 where 1.25 to the fourth is 2.44 so it is almost 2.5 times as resistant roll. There is lots of other engineering involved, but it takes full books to explain it all, talk to Helwig.
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