Front end "crunching"/grinding
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Posting Guru
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Front end "crunching"/grinding
The vehicle in question: 2005 F350SD SB CC PSD 4x4/ESOF.
I'm getting a "crunching" or grinding noise from the front end under full-lock turning at low speeds. The hubs are in the unlocked position.
Any guesses as to what's going on? Is there an easy way to check that the hubs are actually unlocked?
This is my first 4x4 and my first potentially-4x4-related problem... detailed suggestions and instructions would be much appreciated.
I'm getting a "crunching" or grinding noise from the front end under full-lock turning at low speeds. The hubs are in the unlocked position.
Any guesses as to what's going on? Is there an easy way to check that the hubs are actually unlocked?
This is my first 4x4 and my first potentially-4x4-related problem... detailed suggestions and instructions would be much appreciated.
Post Fiend
Joined: Jul 2006
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Doesn't sound so good. First verify that the hubs are actually unlocked by turning the axle by hand, in the opening behind the steering knuckle. There you will see a u joint that is attached to the axle inside of the axle housing. Your problem lies in the hub assembly or the u joints that are in a bind when the wheel is at full lock. If the hubs are locked, then the problem might even be the spider gears inside the diff, that are trying to operate, but can't cuz they are broke. What were the series of events that led up to this noise? Dealership may want to know if you plan on taking it into them to get er fixed under warranty.
Thread Starter
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Posting Guru
Joined: Feb 2005
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It appears one hub was locked in. I played with it and got both unlocked, curing the noise. I guess it's time to look at putting some Warn Premium hubs on. Of course, since my stocker "off-road" Conti tires are shot (one with tread separation) at 31K and a replacement set of 4 BFGs (the new load-range Es) running about $1500, they may have to wait a while.
Thanks for the info.
Thanks for the info.
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
Glad it was as simple as unlocking it again, however, did you actually find out why it was making the noise to start with? That still doesn't sound right. Niether my SD, nor my Excursion make any noises with the hubs locked. You may wanna dig a little to make sure that you don't have a small issue that could turn into a bigger one.
Anyway, good luck with your truck, and too bad about yur tires. Not the first time I have heard that about those tires tho.
Anyway, good luck with your truck, and too bad about yur tires. Not the first time I have heard that about those tires tho.
