Check your shaft!! - Ford Powerstroke Diesel Forum
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Old 09-23-2013, 08:16 AM
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Check your shaft!!

Last night my girlfriend calls me and says she is driving my truck but that there is no steering. luckily she was still in the neighborhood, aka slow speed and was able to stop without hitting anything. I go to inspect the truck to find that the sector shaft has sheared completely off!

After a bit of googling it looks like this is becoming more and more common on these trucks. I thought I would post this up in the hopes that it becomes a known issue for people to keep an eye on. Just like a poster on here said back in 2010 my shaft was half rusty, as in it had been cracked for a while and possibly something I could have noticed in an inspection. I am just so incredibly thankful that she was going slow when it happened, as it could have been deadly for her or other drivers at speed to lose all steering.

The truck is lifted on 37s which I am sure does make the problem worse, but I have also now seen that it happens to stockers too. The best info I found so far was at: Super Duty sector shaft. Please beware and drive/chase safe!!


photo by BSGcustoms, on Flickr
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Old 09-23-2013, 08:55 AM
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what year is your truck?
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Old 09-23-2013, 01:34 PM
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Caught mine before it broke
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Old 09-23-2013, 05:19 PM
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very good catch machete!!

My truck is an 03
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Old 09-26-2013, 05:31 PM
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same thing happened to me going about 45 through the mountains on my way to tahoe in the snow almost drove off the cliff scariest moment ever. I was on 37's at the time with 6 inch lift. Switched to red head box they are supposed to be the strongest.
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Old 09-26-2013, 06:00 PM
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Redhead still uses an OEM sector shaft

most original owners who have this happen can remember a previous large impact or accident from the threads I have read

ford enlarged the bearing and decreased the shaft size at some point in time

funny thing is when they do fail most who post seem lucky and it's low speed or whacking a parking stub etc I guess most road speeds take some of the load off the shaft vs low speed maneuvering

Last edited by ZMANN; 09-26-2013 at 06:04 PM.
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Old 09-28-2013, 09:48 PM
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just replaced mine with another OEM box, it did last 130k, and the truck has had a very very rough life hahaha. Its days of being thrashed on are over now, I am retiring it from off road life and giving it a nice new paint job to keep me motivated to stay off the trails with it. I am glad now that I know to check the sector shaft before doing any towing or highway driving.
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Old 10-09-2013, 11:22 AM
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could you see the crack at all with the pitman arm on there?
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Old 10-13-2013, 09:19 AM
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I'm not sure because I never checked. I assume that with a flashlight and a close inspection I would have seen some of the crack though.
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Old 10-13-2013, 10:03 AM
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Quote:
Originally Posted by xtotalanarcoix View Post
I'm not sure because I never checked. I assume that with a flashlight and a close inspection I would have seen some of the crack though.
One possible indicator would be rust coming out of the threads after the area first gets wet.
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