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Old 04-02-2011, 09:54 AM
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First Post - Rear Diff Identification

Hey all!

Newbie here. I registered for this forum this morning and have been searching here (among other places) for several hours and can't find an answer.

I need to positively identify the rear diff under my truck as I need to upgrade the non-working LS.

Truck:
2002 F350 DRW 6Sp 7.3L Flatbed
I bought this truck used in '06 - door sticker states "incomplete build" as I think this truck was originally ordered as a cab and chassis. The Axle code on the door sticker is blank.

Axle:
Looking at the tag on the rear diff cover, this is what I see:

V2C34 YB
606773-6 LS

Looking on the Dana site, entering 606773-6, I get the following:

Spicer Part# -> 606773-6

You Entered 606773-6
Product Light Axle
Status Inactive
Description F-350 CHASSIS DRW FULL FLOAT W/ABS


Any help would be appreciated!

-CStone
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  #2  
Old 04-02-2011, 06:25 PM
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in the tech forum there is a link to a good diff decoder its proably a dana 80 if you have 3.73 gears its proab a 37 spline if you have 4.10s its proab a 35 spline look up riffraffdiesel he has been a big help to me in my situation of fixing my shot lsd in me early 99 hard to find parts but we got it, are you doing a detroit locker or a detroit tru trac?
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Old 04-02-2011, 06:30 PM
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Quote:
Originally Posted by CStone View Post
Hey all!

Newbie here. I registered for this forum this morning and have been searching here (among other places) for several hours and can't find an answer.

I need to positively identify the rear diff under my truck as I need to upgrade the non-working LS.

Truck:
2002 F350 DRW 6Sp 7.3L Flatbed
I bought this truck used in '06 - door sticker states "incomplete build" as I think this truck was originally ordered as a cab and chassis. The Axle code on the door sticker is blank.

Axle:
Looking at the tag on the rear diff cover, this is what I see:

V2C34 YB
606773-6 LS

Looking on the Dana site, entering 606773-6, I get the following:

Spicer Part# -> 606773-6

You Entered 606773-6
Product Light Axle
Status Inactive
Description F-350 CHASSIS DRW FULL FLOAT W/ABS


Any help would be appreciated!

-CStone
Look on the ID tag that is on the door or the "B" pillar and see what code it says for axle.
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Old 04-02-2011, 06:43 PM
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Axle Type
31 — 3.73 non-limited slip, F-250/Excursion
C1 — 3.73 limited slip, F-250/Excursion
32 — 4.10 non-limited slip, F-250
C2 — 4.10 limited slip, F-250/Excursion
33 — 4.30 non-limited slip, F-250
C3 — 4.30 limited slip, F-250/Excursion
36 — 4.56 non-limited slip, F-250
C6 — 4.56 limited slip, F-250
41 — 3.73 non-limited slip, F-350 (single rear wheels)
D1 — 3.73 limited slip, F-350 (single rear wheels)
42 — 4.10 non-limited slip, F-350 (single rear wheels)
D2 — 4.10 limited slip, F-350 (single rear wheels)
43 — 4.30 non-limited slip, F-350 (single rear wheels)
D3 — 4.30 limited slip, F-350 (single rear wheels)
46 — 4.56 non-limited slip, F-350 (single rear wheels)
D6 — 4.56 limited slip, F-350 (single rear wheels)
61 — 3.73 non-limited slip, F-350 (dual rear wheels)
F1 — 3.73 limited slip, F-350 (dual rear wheels)
62 — 4.10 non-limited slip, F-350 (dual rear wheels)
F2 — 4.10 limited slip, F-350 (dual rear wheels)
63 — 4.30 non-limited slip, F-350 (dual rear wheels)
F3 — 4.30 limited slip, F-350 (dual rear wheels)
66 — 4.56 non-limited slip, F-350 (dual rear wheels)
F6 — 4.56 limited slip, F-350 (dual rear wheels)
81 — 3.73 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E1 — 3.73 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
82 — 4.10 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E2 — 4.10 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
83 — 4.30 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E3 — 4.30 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
86 — 4.56 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
E6 — 4.56 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
88 — 4.88 non-limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
EW — 4.88 limited slip, F-350 Chassis Cab, narrow frame (dual rear wheels)
G3 — 4.30 limited slip, F-450 Chassis Cab
73 — 4.30 non-limited slip, F-450 Chassis Cab
78 — 4.88 non-limited slip, F-450 Chassis Cab
G8 — 4.88 limited slip, F-450 Chassis Cab
75 — 5.38 non-limited slip, F-450 Chassis Cab
G5 — 5.38 limited slip, F-450 Chassis Cab
GW — 4.10 limited slip, F-450 Chassis Cab
98 — 4.88 non-limited slip, F-550 Chassis Cab
K8 — 4.88 limited slip, F-550 Chassis Cab
95 — 5.38 non-limited slip, F-550 Chassis Cab
K5 — 5.38 limited slip, F-550 Chassis Cab
KW — 4.10 limited slip, F-550 Chassis Cab
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Old 04-04-2011, 11:06 AM
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Quote:
Originally Posted by dhanna6powerstroke View Post
Look on the ID tag that is on the door or the "B" pillar and see what code it says for axle.
I bought this truck used in '06 - door sticker states "incomplete build" as I think this truck was originally ordered as a cab and chassis. The Axle code on the door sticker is blank.
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Old 04-04-2011, 11:08 AM
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Quote:
Originally Posted by codysweat View Post
in the tech forum there is a link to a good diff decoder its proably a dana 80 if you have 3.73 gears its proab a 37 spline if you have 4.10s its proab a 35 spline look up riffraffdiesel he has been a big help to me in my situation of fixing my shot lsd in me early 99 hard to find parts but we got it, are you doing a detroit locker or a detroit tru trac?
It's 4.10 according to tags on the differential cover.

I'm going with a tru trac since I drive this truck on the road as well as tow heavy.
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Old 04-04-2011, 12:30 PM
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well it "should be a 37 spline then. but thats just an assumption check our riffraffdiesel.com he has the detroit tru trac on his page. im doing my tru trac from him and i believe mine is a 35 spline wiht 3.73 gears
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Old 04-06-2011, 03:02 PM
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Thanks, codysweat.

Anybody else know anything about this 4.10 axle? Since I looked up one of the part numbers on the ID tag (606773-6) on the Dana website, I get the following:


Spicer Part# -> 606773-6

You Entered 606773-6
Product Light Axle
Status Inactive
Description F-350 CHASSIS DRW FULL FLOAT W/ABS


But this doesn't tell me if it's an 80 or not, and whether it's a 35 or 37 spline.

Looking up the other number on the ID tag (V2C34 YB) on Google netted nothing.

As I stated earlier, the sticker on the B-pillar states "Incomplete Build" as I think this truck was originally ordered as a cab-and-chassis. The Axle code on the sticker is blank.
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