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Just_Jeff's avatar
Just_Jeff
Explorer
Jun 08, 2013

Batteries making my rig lean?

So...took the rig for a little drive after I got 3x220AH batteries into the newly welded box, which is a little over 500lbs added to the driver's side. Alignment was a little off.

Took it on a longer trip to CW for some warranty work (house door replaced) with my wife following, and she said it was leaning to the left enough for her to notice it. It also felt less stable like it was swerving a little, but it was very windy here in Colorado so that's not an uncommon feeling. The wind also could have made the lean worse but I suspect that was more due to the extra weight on one side.

What are the considerations for this? Any danger? I plan to get the alignment fixed shortly, and if the lean is bad enough maybe I'll add a leaf to that suspension or something.

I'm driving from CO to VA early next month so I don't really have time for significant work before I head out. If it's an issue, I'll just take a battery out to balance the weight until I get to VA.

Thanks!

24 Replies

  • If it was right even between axles, it is equivalent to adding 1000 pounds to the rig. If right over a single axle, it has the same impact on that axle as adding 2000 lbs. overall. At the least tire pressure adjustment is in order.

    Really you are supposed to air up all tires on the axle for the heavier load. I like to air the outsides on dualies a few pounds higher than the inside tires for stability (up to a 5 psi difference is still within Ford specs).

    Jim
  • Many rigs are a little off - if it's way off then I would take it into shock/suspension shop - might be easy to fix.
  • First off add air to the tires on that side in proportion to the extra weight they are carrying from the weight table for your tires. Also check that your outer dually tires do not have even a pound less air than the inners.

    Jim

    Correction. Add air to both sides in proportion to the heaviest load on either side to improve handling.

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