4WD tire size question
10-24-2005, 07:02 AM
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4WD tire size question
Yesterday it rained and after fishtailing at an intersection from my 80% used rear tires I threw her into 4WD. when I got to my destinatinon and put the truck in park I could hear the transmission kick, as well as the frame of the truck.
Okay I understand 4WD systems like to bind, but then I noticed that the rear tires are slightly larger than my front (bought the truck 5 mos ago, never gave it any thoguht.) This leads me to believe that due to the difference in tire size, the front and rear wheels are moving at different sppeds, which prolly isnt good for a synchronized drive train. Therefore causing the excessive binding.
Am I right?
Okay I understand 4WD systems like to bind, but then I noticed that the rear tires are slightly larger than my front (bought the truck 5 mos ago, never gave it any thoguht.) This leads me to believe that due to the difference in tire size, the front and rear wheels are moving at different sppeds, which prolly isnt good for a synchronized drive train. Therefore causing the excessive binding.
Am I right?
10-24-2005, 07:05 AM
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10-24-2005, 07:06 AM
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i would think it has more to do with engaging 4WD on pavement (wet or not)
sounds like you're in the market for some new tires anyway. just get the same size all around this time!
sounds like you're in the market for some new tires anyway. just get the same size all around this time!
10-24-2005, 07:08 AM
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Yep.
On the newer rigs with open/locking diff's in the xfer case, it's not quite such a big deal, but on yours, the tires need to be pretty close in size. Any time the drivetrain can build up a differential in torque because of different tire sizes, use on pavement, etc, it's a potential problem. Maybe it won't bite you, maybe it will...
On the newer rigs with open/locking diff's in the xfer case, it's not quite such a big deal, but on yours, the tires need to be pretty close in size. Any time the drivetrain can build up a differential in torque because of different tire sizes, use on pavement, etc, it's a potential problem. Maybe it won't bite you, maybe it will...
10-24-2005, 08:22 AM
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Ok, a couple things.
Different tires will cause the axles to spin at different rates and cause bind in 4wd.
Different gearsets in the diffs will do the same thing.
4x4 on the pavement is gonna caus ebind, especially when turning.
Different tires will cause the axles to spin at different rates and cause bind in 4wd.
Different gearsets in the diffs will do the same thing.
4x4 on the pavement is gonna caus ebind, especially when turning.
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