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gear ratios

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Old Mar 4, 2008 | 07:18 PM
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gear ratios

Does the VIN have the gear ratios in it somewhere? I have a 1994 f-150 4x4 and the rear gears have seen better days.
 
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Old Mar 4, 2008 | 07:22 PM
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Your door sticker should have the axle code. Mine is C-9 which translates into a 3:55 limited slip 6200# capacity. Post yours and we can decode it for you.
 
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Old Mar 4, 2008 | 07:24 PM
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By the way, welcome to the site. This is the place for all things Ford Trucks. Happy to have you.
 
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Old Mar 4, 2008 | 07:37 PM
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Thanks I will get it and post.
 
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Old Mar 4, 2008 | 10:15 PM
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The tag on your rear axle should also tell you what the ratio is.
 
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Old Mar 5, 2008 | 08:54 AM
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I got the door code and it is H-9
 
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Old Mar 5, 2008 | 09:26 AM
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its a 3;55 ratio L/s Ar u sure it the gears chack the pinuin nut at youk sometimes thay backoff
 
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Old Mar 5, 2008 | 09:55 AM
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I pulled off the cover and the planetary gears are toast. I need to replace the whole thing I think. thanks for the info.
 
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Old Mar 5, 2008 | 10:51 AM
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Ryan is correct. H-9 Is a 3:55 L/S with a 3800# capacity. Should be plenty of these in the bone yards. Good luck.
 
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Old Mar 5, 2008 | 01:19 PM
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There are no planetary gears in a differential. All you said was the gears have seen better days. Are they physically damaged? Does it whine?
 
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Old Mar 5, 2008 | 02:34 PM
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Yes the smaller gears are damaged and when i turn sharp it pops real loud.
 
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Old Mar 5, 2008 | 04:35 PM
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Originally Posted by captm11a
Yes the smaller gears are damaged and when i turn sharp it pops real loud.
when 'you turn sharp' as in driving it?- if so,does it feel as if the rear wheels are locking up somewhat before it "Pops" or bangs?
I ask because I got somewhat the same problem at the moment and I'm about to swap out housings on mine.
 

Last edited by quisp-n-quake; Mar 5, 2008 at 04:47 PM. Reason: worded incorrectly
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Old Mar 5, 2008 | 06:36 PM
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If I back out and turn sharp and then go forward it pops and feels like something is locking up also if turning at a stop sign it sometimes does it. I just took the cover off and some large pieces of metal came out so its toast.
I have found a used rear end and I am going to swap out the gears with new bearings and seals everywhere encluding the axles.
 
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Old Mar 6, 2008 | 09:16 AM
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Originally Posted by captm11a
If I back out and turn sharp and then go forward it pops and feels like something is locking up also if turning at a stop sign it sometimes does it. I just took the cover off and some large pieces of metal came out so its toast.
I have found a used rear end and I am going to swap out the gears with new bearings and seals everywhere encluding the axles.
That sounds like what mine was doing before it got worse, - mine sounds like its close to detonation at this point, there was chunks in mine too-this also messed up one of the axels it looks marred where the locking clip is and kinda peened over, so check those. I'm changing out the whole housing on mine, seems to be less work in a way.- thanks,-good luck.
 
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Old Mar 7, 2008 | 11:59 AM
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I just got my complete rear end from the bone yard and I need someone to decode the umbers that are on the tag on the rear end. the people said theythought this was the right one but didnt know for sure.
my door code is H9 and the tag number are S844B 355 883A27 could somebody help please!!!!
 
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