The axle nuts for a 2005 Jeep Grand Cherokee will have a hex size of 36mm. This is a very common nut size and You should have a socket available to use for this job. If You need a new set of axle nuts for this vehicle they will cost between $15 and $20 per axle. If You need a set for both axles the total cost will be between $20 and $30. You might not be able to find a new set of axle nuts at every store so it might be best for You to order online.
Willie S
July 16, 2020
The 2005 jeep grand cherokee axle nut size is specified as 36mm from the manufacturer.
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