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9" rear end 1969

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Old 12-23-2018, 07:11 PM
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9" rear end 1969


My 1969 F-100 with a 390 motor has a rear end with (WEY-A 9CC) (8 259.335CA) on the rear end tag. I am guessing that the 335CA means a 335 geared rear end. I was told the parts are all but non-existence. I do need a locker for this rear end so if you have one laying around collecting dust and in the way I could us it and would gladly hall it off for you. I also want to rebuild this rear end with all new bearings and races and seals.
 
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Old 12-23-2018, 07:18 PM
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That's a ford 9 3/8 rear. The "8" is a 3 followed by .25 meaning 3.25 gears. How do you know it's not a limited slip unit with a worn clutch pack? I just put a 3.25 LS unit from a truck like yours in my '68 T-bird this past summer.Not much love for these oddballs from the aftermarket.
 
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Old 12-23-2018, 08:07 PM
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Tag would read "3L25" if it was an OEM limited slip. Unless someone added ls or locker it is open. Can't tell unless you take it apart.
 

Last edited by 85e150six4mtod; 12-24-2018 at 05:13 PM. Reason: correction
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Old 12-23-2018, 08:21 PM
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Oh,didn't recall if they did the L between the numbers back then.
 
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Old 12-24-2018, 01:50 PM
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I have not had it apart and don't know what it looks like inside that is coming. I just know if you turn the wheel on one side the other side doesn't move. I am sure it needs rebuilding since I am the second owner and the 1st one said he never touched the rear end. The speed odometer has 109 thousand miles on it. Sounds about right since the engine was never bored, and I did bore it .030. The truck cab had rust only on the corner panels and I fixed that. How hard is it to find parts. I have not started looking yet.
 
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Old 12-24-2018, 01:54 PM
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I doubt it needs anything at 100k miles. These are actually more robust than the common 9" and it's probably still as good as new. I bought a used carrier and just installed it,worry free.Of course if you want a LS or locker unit,then your going to need to do something else.
Follow this thread to see about swapping a standard 9" carrier into the unit:Have a 9" center section laying around? Measurements please
 
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Old 01-10-2019, 10:08 AM
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So when hanging out in my favorite parts house (the local junk yard) I see a lot of ford trucks that all have different names like Lighting, Harley Davidson, and some that are 4x4, of these trucks which one that is a 5 lug rear end might have the best chance of having a locker in it and disc brakes. Got any good Ideas which one I should crawl under first. I would like for it to come close to fitting under my 69 F-100 with out a lot of changes.
 
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Old 01-10-2019, 12:15 PM
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I think those vintage trucks you're naming are more late models, which will use an 8.8" axle, not the 9". They can be made to fit your 69 F-100, but it won't be a bolt-in.

You can easily check if they have disc brakes by looking, and see if they have limited slip by turning one wheel and seeing what the driveshaft and other wheel does. If you lock the driveshaft and turn one wheel, and feel no resistance and see the other wheel turn the opposite direction, it likely is open. A limited slip has spring loaded clutches that provides 40-80 lb-ft of break-away torque, so will fight your attempts to turn one wheel.
 
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Old 01-10-2019, 12:57 PM
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No 9ers with disc brakes in trucks.
 
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Old 01-11-2019, 09:26 AM
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Try here...http://www.ford-trucks.com/forums/15...-end-swap.html. Read towards the bottom.
 
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Old 01-12-2019, 01:03 PM
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Ok so my junk yard find is a 2002 ford truck rear end. I got it for hundred dollars and they pulled it and set it in the bed of my truck. I just don't know what I bought but for a hundred dollars I bought it anyway. There is electrical plug on top of the pumpkin that I not sure what they are. I did bet the numbers and I took pictures. Pictures always goooood.





 
  #12  
Old 01-12-2019, 06:20 PM
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A clearer shot of the tag--your first picture, will give the code.

Electrical is probably VSS.
 
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Old 01-13-2019, 12:45 PM
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Sorry about it being upside down but that was the way it was on the rear end.
 
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Old 01-13-2019, 12:48 PM
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The new rear ends are about 6" wider than my 69 ford rear end and the spring mounts are 4.5" wider also. I am not sure I want to mess with trying to fit this rear end under my truck.
 
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Old 01-13-2019, 11:17 PM
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Originally Posted by Tex51 View Post
The new rear ends are about 6" wider than my 69 ford rear end and the spring mounts are 4.5" wider also. I am not sure I want to mess with trying to fit this rear end under my truck.
Right. Maybe you can horse trade it for partial credit at the jy when you find one for your year model.
 


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