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  #16  
Old 02-01-2013, 12:44 PM
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ahh.... Thanks for the explanation. I'm glad my truck has it
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  #17  
Old 02-02-2013, 10:05 AM
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Quote:
Originally Posted by redford View Post
It is easier just to read your door sticker, under AXLE. Look closer, D1 is not a choice. 3L maybe, or 41?

AXLE CODES:

37- 3.73

3L- 3.73 LS

41- 4.10

4N- 4.10 LS

43- 4.30

4L- 4.30 LS

48- 4.88

8L- 4.88 LS

53- 5.38

5L- 5.38 LS

Thanks Redford and others. Its a 2003 (May) F350 Crew Cab 6.0. Here's the placard. I guess the only risk with this method is that the axel could have been changed before I got the truck. Unlikely, but possible.

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  #18  
Old 02-02-2013, 10:14 AM
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Just scrolled farther down on drivetrain.com (thx sammie) and see the D1. "Limited Slip Differential 3.73". Assuming that it hasn't been changed since new, should I use the 75W140 Synthetic Oil in it? Ford talked me into 2 containers of the Limited Slip stink juice too.
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  #19  
Old 02-02-2013, 11:03 AM
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Quote:
Originally Posted by Enduroman View Post
Just scrolled farther down on drivetrain.com (thx sammie) and see the D1. "Limited Slip Differential 3.73". Assuming that it hasn't been changed since new, should I use the 75W140 Synthetic Oil in it? Ford talked me into 2 containers of the Limited Slip stink juice too.
Yes 75W140 with limited slip additive, spec is 2 oz of the additive, but check that to be sure.

Or use Royal Purple which has additive already included. I have the V423B in my truck very similar to yours and I use Royal Purple 75W140 holds about 2 1/2 quarts and I do not have any additional LS additive in it.
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  #20  
Old 06-18-2014, 02:57 PM
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Quote:
Originally Posted by Yahiko View Post
Redford.
Thank You for posting that.

To answer the question on what the LS is good for.
Lest say you get on some slick stuff on one side if you have a LS
then the other side would get some traction if you did not then you would
just sit there and spin one wheel.

Sean
Mine says C1 any Ideas?
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  #21  
Old 06-18-2014, 03:03 PM
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axle

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  #22  
Old 06-18-2014, 03:05 PM
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axle

and 8800lbs means 3/4 ton right?
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  #23  
Old 06-18-2014, 03:43 PM
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Quote:
Originally Posted by Rickey Joe View Post
and 8800lbs means 3/4 ton right?
Gross Vehicle Weight Rating (GVWR). 8800lbs is the maximum Gross Vehicle Weight (GVW ) specified by Ford for your truck plus its load.
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  #24  
Old 06-18-2014, 04:01 PM
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C1 Axle code

Quote:
Originally Posted by Rickey Joe View Post
Mine says C1 any Ideas?
I found it. Mine is the C1 — 3.73 limited slip, F-250/Excursion thank you for your support.
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  #25  
Old 06-18-2014, 04:03 PM
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Quote:
Originally Posted by RickF350 View Post
Gross Vehicle Weight Rating (GVWR). 8800lbs is the maximum Gross Vehicle Weight (GVW ) specified by Ford for your truck plus its load.
and " rickf350" Thank You for your support..
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  #26  
Old 06-18-2014, 04:39 PM
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OK, let me try again. GVWR 8800lb = Ford saying that your truck and its load can not safely weigh more than 8800 lbs.
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  #27  
Old 06-18-2014, 05:43 PM
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ton

Quote:
Originally Posted by RickF350 View Post
OK, let me try again. GVWR 8800lb = Ford saying that your truck and its load can not safely weigh more than 8800 lbs.
Yes sir. I understood the first time...........What I was wondering is if MY Truck is indeed a 3/4 ton? I do not know how to tell if it is or not.
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  #28  
Old 06-18-2014, 06:23 PM
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Quote:
Originally Posted by Rickey Joe View Post
Yes sir. I understood the first time...........What I was wondering is if MY Truck is indeed a 3/4 ton? I do not know how to tell if it is or not.
Oh,OK. Check your vin here VIN Decoder | fleet.ford.com
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  #29  
Old 06-18-2014, 06:43 PM
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Thank You Very muck....You have been verry helpfull
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  #30  
Old 06-18-2014, 07:26 PM
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Quote:
Originally Posted by oracle View Post
Sorry for the hijack of the thread but is it a good thing to have LS in a truck?
What are the advantages/disadvantages?
Back in my country boy days, I saw many many trucks stuck with only one (2wd) or two (4wd) wheels turning. My Bronco had a trac-lok rear end and LS in the front. I could throw 4 rooster tails as I drove by every time.

I will always have LS or a locking differential to increase the chances of not being stuck (btw it WAS possible to get stuck in that Bronco, just farther into things - just sayin ).
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