Rear differintial gear ratio

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Dec 27, 2009 | 01:11 PM

williamsplumbing

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Rear differintial gear ratio

bought this brand new, prieviously owned.'05 150 Supercrew, 5.4, and I don't have the window sticker to denote if I have a "limited slip" and what gear ratio. Is there identification on a door decal and how would it be decoded. Help please.

Dec 27, 2009 | 01:21 PM

bridge

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From: League City, TX

What's your VIN?

Dec 27, 2009 | 01:46 PM

williamsplumbing

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my VIN

I started to say thats rather personal, but then again i'm the one asking for assistance...how about 1FTPW14515KD58163. I went on line to check the VIN codes, but I don't recall finding out that information.

Dec 27, 2009 | 01:56 PM

Ryan50hrl

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From: Neenah, Wisconsin

I really wouldn't worry about people asking your vin.....they can walk up to your window and write it down it they wanted.....also...its the easiest way to tell ya what your truck has...

Dec 27, 2009 | 02:00 PM

bridge

Sick 'n Tired

Joined: May 2006

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From: League City, TX

Well, normally this link works, but for some reason it's giving an error. Keep trying it and hopefully it will come up soon.

Untitled Page

It worked with my '06 Expy and has worked with my '06 F150...maybe just a geek web developer taking xmas off

On a side note, there is a sticker on you door jamb with your axle code. Here are the codes:
19 — 3.55 non-limited slip — F-150
25 — 4.10 non-limited slip — F-150
26 — 3.73 non-limited slip — F-150/Mark LT
27 — 3.31 non-limited slip — F-150
B5 — 4.10 limited slip — F-150
B6 — 3.73 limited slip — F-150/Mark LT
H9 — 3.55 limited slip — F-150

Dec 27, 2009 | 02:01 PM

williamsplumbing

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My VIN

I was being rather facetious. It's a cold rainy day here in Northern CA, I cant go out and work on any thing, I'm sooo bored.

Dec 27, 2009 | 02:09 PM

williamsplumbing

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VIN

Got it, thank you, limited slip 3.73. I'm getting so used to typing on my blackberry, typing on the computer is taking extra work.

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Dec 28, 2009 | 04:37 AM

svt2205

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Joined: Mar 2004

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From: Sunapee NH

The window sticker VIN trick only works on 06's or later.

4.10 gears were available with the Heavy Duty Payload Package. I don't believe they were an option in any other package.

Dec 28, 2009 | 11:58 AM

#10

hcbph

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Joined: Jul 2009

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From: Minneapolis, Mn

Gears

Quote:

Originally Posted by svt2205

4.10 gears were available with the Heavy Duty Payload Package.

+1
I have a 07 Heavy Duty and it has 4.10's in the heavier rear end.

Dec 28, 2009 | 02:49 PM

#11

Raider50

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Joined: Mar 2007

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From: Buffalo, Wyoming

Quote:

Originally Posted by hcbph

+1
I have a 07 Heavy Duty and it has 4.10's in the heavier rear end.

man that sucks, i wished i had 4.10's or even better 4.30's or 4.56's.

Dec 29, 2009 | 07:11 PM

#12

Davko

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Sorry to ask if this is too basic - But what is the difference between limited slip and non-limited slip???

Dec 30, 2009 | 01:46 PM

#13

hcbph

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From: Minneapolis, Mn

Quote:

Originally Posted by Davko

Sorry to ask if this is too basic - But what is the difference between limited slip and non-limited slip???

Depending on the make/model of unit - there's a series of gears/clutchs/etc in the differential that once one wheel starts overspinning compared to the other, power is then transferred to the non spinning wheel. Think as if you have one rear wheel on sheer ice and the other on pavement, with an open differential only the one wheel is going to spin. On a LS, once the one wheel overspins so much, through the LS, the 2 axels become closer to being locked together, limiting some spinning on the one wheel and forcing the other wheel to start turning.

Not as easy to explain as I thought it was going to be but I hope it was sufficient.