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4.09 rear?

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Old Mar 20, 2005 | 07:03 AM
  #1  
aa777888's Avatar
aa777888
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4.09 rear?

Hi all,

Just got a 2000 F250 PSD. Checked the FAQ regarding the final drive ratios. My door tag is blank in the axle section. My axle tag says 409. Shouldn't it say 410?

Thanks,

aa
 
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Old Mar 20, 2005 | 09:04 AM
  #2  
high ho silver's Avatar
high ho silver
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You must be looking at the wrong set of numbers. Try looking at the tag on the front axle. It is a little easier to read all the numbers there. The one on the rear usually has some covered by the bolt head.
 
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Old Mar 20, 2005 | 09:55 AM
  #3  
Dave Sponaugle's Avatar
Dave Sponaugle
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Were you looking at the front axle?

Mine has 3.55 in the rear and 3.54 in the front.
I have also seen the 4.10 rear and 4.09 front combination before.
 
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Old Mar 20, 2005 | 01:44 PM
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aa777888's Avatar
aa777888
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Looks like I may have been fooled by the bolt covering part of the tag. I was looking at the rear diff. The tag there reads:

S 409 H
?L73 10 5 0624

Where the "?" is a character mostly covered by a bolt. It might be a "3".

So, if the "?" is a "3" then I therefore have a 3.73 limited slip rear end. Hooray, that's what I wanted!

Thanks for the help everyone.

aa
 
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