2008 F350 Diff Codes?...HELP Please

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May 7, 2016 | 11:50 AM

ssmandavid

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From: Florida

2008 F350 Diff Codes?...HELP Please

Hello

I am trying to find the specs for my trucks Differentials.
ratio, oil to use, lsd, etc. etc.

I have looked at several sites but none seem to have the info.
Ford was no help, kept asking if I wanted to buy a new truck.

my truck is a 2008 F350 - XLT, 6.4, 6-speed manual 4X4, single rear wheel.

anyways, here are the codes off the tags if anyone has the specs handy.

thanks for the help.

FRONT Tag.
3 73 8C34-BAA
2009785-1

REAR Tag
V 469 K
L73 10 5 8F19

again, thanks for the help.
Dave

May 7, 2016 | 12:24 PM

redford

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From: Stephensville WI

What is the axle code on the door sticker?

May 7, 2016 | 03:50 PM

mattymax

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3L - 3.73 limited slip

May 7, 2016 | 10:48 PM

projectnitemare

Laughing Gas

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As mentioned earlier you have 3.73s and a limited slip rear. Front is a Dana 60 rear is a Ford 10.5. My memory may not be 100% but the front should take 80w/90 and the rear 85w/140.

May 8, 2016 | 03:25 AM

ssmandavid

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From: Florida

Thanks folks, that's what I was trying to find.

it says in the owners manual that the rear axle has synthetic fluid that should only be changed if axle was in water...never heard of that before.

Thanks, Dave

PS-how do I delete the door jamb sticker photo?

May 8, 2016 | 08:49 AM

sxrfun

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Joined: Mar 2011

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From: Ontario , Canada

Yeah I have same year truck as you...I changed mine a year and a half ago...at roughly 180,000 kms...I didn;t buy the whole don't change unless in water idea.....I used royal Purple in both....75w-140 synthetic in rear and 80w-90 synthetic in front. The 75w140 comes with limited slip additive already in it....and after i put it in i noticed my limited slip actually functioned better then it ever did before...I think Ford put to much additive in from the factory.

May 9, 2016 | 03:31 AM

ssmandavid

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Joined: Dec 2015

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From: Florida

sxrfun, I only have 91k miles on the truck. no problems at except the front brake caliper sticking, re-built the entire system with good parts. I like to take care of it so no future problems.

Dave