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1990 f150 4x4 REAR END GEAR RATIOS

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  #1  
Old 10-25-2005, 04:25 PM
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1990 f150 4x4 REAR END GEAR RATIOS

dOES ANYBODY KNOW WHAT THE GEAR RATIO IS ON THE REAR END.
 
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Old 10-25-2005, 04:32 PM
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what engine? it is listed in the owners manual in a table in the rear btw
 
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Old 10-25-2005, 04:35 PM
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There should also be a tag on the rear end listing the ratio, I beleive.
 
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Old 10-25-2005, 04:52 PM
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Originally Posted by klosterk
dOES ANYBODY KNOW WHAT THE GEAR RATIO IS ON THE REAR END.
...Welcome to Ford Truck Enthusiasts!

…..See you on the boards.
 
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Old 10-25-2005, 07:33 PM
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Pssst...all caps is considered SHOUTING on the internet--and considered impolite. Not to mention, it's harder for most people to read. If you don't want to use the 'shift' key, all lowercase is easier to read.

And, if you're wondering, there are some out there who won't answer your question because of the "shouting", so to have a better shot at getting your question attended, you might try posting in lowercase next time.

As to your question, there should be a code under "Axle" or something like that on the sticker on your driver's door (or is it on the post?) That code, when deciphered from either the original manual, or from folks here, will tell you the original ratio, type of axle, and whether it is an open differential or limited-slip. My '90 F150 has a code of 35, which is a Ford 8.8" rear end with an open 3.55:1 differential.

Jason
 
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Old 10-25-2005, 09:01 PM
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Originally Posted by klosterk
dOES ANYBODY KNOW WHAT THE GEAR RATIO IS ON THE REAR END.
The ratio will depend on what ratio was ordered from the factory. You have not provided us enough information to answer this question. As others have said, look on the tag on the driver's door jam. It will list an axle code. People here should be able to help you decipher the code.
 
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