Ok so i belive i have decoded this but i am a bit confused about a couple things. Let me run what i have by yall and tell me if im right.

I have a 3.73 LS Rear end?
I have a Automatic 4R70W Trans?

I have been using the search and google and have found a thread on this site to decode it but there are some missing links and a few things don't add up.

Axle B6 is supose to be a 3.73 LS but the "C" from what i understood is a "conventional" or Non LS. I need to know what i have so i can change my diff fluid. Also any help or pointers or type of fluids and where to purchase would be great. I would also like to do my front diff and T-Case but i need to do the rear cause its getting a wet spot.

Sorry not the best pic quality. I used my cell phone

 

Radio Codes


8-AM/FM stereo with cassette, Premium Sound (Econoline, F-150, F-250)
7-AM/FM stereo with clock (Econoline, F-150, F-250, Ranger)
9-AM/FM stereo with cassette and clock (Econoline,F-150,F-250,Explorer/Mountaineer, Ranger)
3-AM radio with clock (Econoline)
2-AM/FM stereo with compact disk player (Explorer/Mountaineer)
K-AM/FM stereo with cassette, compact disk player and digital sound processing (Explorer/Mountaineer, Ranger)
Z-AM/FM stereo with compact disk player (Ranger)


Axle Codes
The following lists the gear ratios on rear axles.


19-3.55 non-limited slip (Econoline, F-150)
18-3.08 non-limited slip (F-150)
17-3.31 non-limited slip (Econoline)
H9-3.55 limited slip (F-150, F-250)
B6-3.73 limited slip (F-150, F-250)
24-3.73 (Econoline)
32-4.10 (Econoline)
35-4.09 (Econoline)
34-3.73 (Econoline)
39-3.55 (Econoline)
52-4.10 (Econoline)
56-4.10 (Econoline)
81-4.63 (Econoline)
27-3.31 non-limited slip (F-250)
26-3.73 non-limited slip (F-250)
41-3.27 non-limited slip (Explorer/Mountaineer)
45-3.55 non-limited slip (Explorer/Mountaineer)
46-3.73 non-limited slip (Explorer/Mountaineer)
42-4.10 non-limited slip (Explorer/Mountaineer)
D1-3.27 limited slip (Explorer/Mountaineer)
D4-3.73 limited slip (Explorer/Mountaineer)
D2-4.10 limited slip (Explorer/Mountaineer)
84-3.45 non-limited slip (Ranger)
86-3.73 non-limited slip (Ranger)
87-4.10 non-limited slip (Ranger)
89-4.56 non-limited slip (Ranger)
F6-3.73 limited slip (Ranger)
F7-4.10 limited slip (Ranger)
92-3.08 non-limited slip (Ranger)
R5-3.55 limited slip (Ranger)
91-3.27 non-limited slip (Ranger)
96-3.73 non-limited slip (Ranger)
R6-3.73 limited slip (Ranger)

Transmission Codes


U-automatic 4R70W-AOD (Econoline, F-150, F-250, Explorer/Mountaineer)
E-automatic E4OD (Econoline, F-150, F-250)
M-five-speed manual overdrive (F-150, F-250, Explorer/Mountaineer, Ranger)
D-automatic five-speed (Explorer/Mountaineer, Ranger)
T-Automatic four-speed (Ranger)
Spring Codes
The following lists available spring codes.

Front Springs


1-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250. Explorer/Mountaineer)
2-5B326 (RH), 5B327 (LH) torsion bar (F-150. F-250, Explorer/Mountaineer)
3-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
4-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
G-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
8-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
9-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
Z-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
T-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
U-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
6-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
C-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
E-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
F-5B326 (RH), 5B327 (LH) torsion bar (F-150, F-250)
B-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
D-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
E-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
F-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
G-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
H-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
J-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
L-5B326 (RH), 5B327 (LH) torsion bar (Explorer/Mountaineer)
P-automatic ride control (Explorer/Mountaineer)
A-5310 spring (Econoline, F-150, F-250, Ranger)
B-5310 spring (Econoline, F-150, F-250)
C-5310 spring (Econoline, Ranger)
D-5310 spring (Econoline, Ranger)
E-5310 spring (Econoline, Ranger)
F-5310 spring (Econoline, Ranger)
G-5310 spring (Econoline, Ranger)
H-5310 spring (Econoline, Ranger)
J-5310 spring (Econoline, F-150, F-250)
K-5310 spring (Econoline, F-150, F-250, Ranger)
L-5310 spring (Econoline, F-150, F-250)
M-5310 spring (Econoline, F-150, F-250, Ranger)
N-5310 spring (Econoline, F-150, F-250, Ranger)
P-5310 spring (Econoline, F-150, F-250)
R-5310 spring (Econoline, F-150, F-250)
S-5310 spring (Econoline, F-150, F-250)
T-5310 spring (Econoline, Ranger)
U-5310 spring (Econoline)
V-5310 spring (Econoline)
W-5310 spring (Ranger)
Z-5310 spring (Econoline)

Rear Springs


6-5560 spring (Econoline)
7-5560 spring (Econoline)
C-5560 spring (Econoline, F-150)
E-5560 spring (Ranger)
N-5560 spring (Econoline, F-150)
P-5560 spring (Econoline, F-150)
R-5560 spring (Econoline, Ranger)
S-5560 spring (Econoline, Ranger)
T-5560 spring (Ranger)
X-5560 spring (Ranger)
G-5560 spring (Econoline, F-150)
K-5560 spring (Econoline, F-150, Ranger)
A-5560 spring (F-150)
B-5560 spring (F-150)
D-5560 spring (F-150)
F-5560 spring (F-150, Explorer/Mountaineer)
H-5560 spring (F-150, Explorer/Mountaineer)
J-5560 spring (F-150)
L-5560 spring (F-150, Explorer/Mountaineer)
1-5560 spring (F-250)
2-5560 spring (F-250)
3-5560 spring (F-250, Ranger)
4-5560 spring (F-250)
X-5580 spring, load-leveling suspension (F-250)
Y-5580 spring, load-leveling suspension (F-250)
Interior Trim Codes
The following lists the interior trim and interior color codes.

Interior Trim


A-Hampton vinyl bucket seats - Econoline
E-Camden cloth captain chairs- Econoline
C-Stockton vinyl bucket seats- Econoline
F-Kirk cloth captain chairs- Econoline
A-vinyl full bench seat (split back), vinyl full bench (Mexico)-F-150, F-250
C-polyknit full bench seat (split back), polyknit full bench (Mexico)-F-150, F-250
F-cloth captains chairs with console-F-150, F-250
H-leather captains chairs with console F-150, F-250
M-cloth 40/60 bench seat-F-150, F-250
E-leather 40/60 bench seat-F-150, F-250
A-vinyl bucket seats (Explorer)
J-cloth premium bucket seats (Explorer/ Mountaineer)
Z-cloth sport bucket seats (Explorer/Mountaineer)
G-cloth sport bucket seats - less power (Explorer)
F-leather sport bucket seats (Explorer/Mountaineer)
M-cloth split bench seat (Explorer)
I-limited leather sport bucket seats (Explorer)
H-simulated split vinyl bench seat (Ranger)
E-Cirrus cloth 60/40 split bench seat (Ranger)
G-Triad luxury sport bucket seats (Ranger)

Interior Color Codes


X-Medium Prairie Tan (F-150, F-250, Explorer/Mountaineer. Ranger)
2-Medium Graphite (Econoline, F-150, F-250, Explorer/Mountaineer, Ranger)
S-Willow Green (F-150, F-250, Explorer/Mountaineer, Ranger)
D-Denim Blue (Econoline)
P-Mocha (Econoline)
N-Cordovan (F-150, F-250)
E-Dark Denim Blue (Explorer/Mountaineer, Ranger)

Tape Stripe Codes


B-Silver/Red - Econoline (Chateau)
C-Light Teal/Red - Econoline (Chateau)
D-Medium Silver/Red - Econoline (Chateau)
H-Silver Metallic/Heliotrope (F-150, F-250) 4x2
2-Ebony/Amethyst (F-150, F-250) 4x2
T-Silver Metallic/Medium Titanium (F-150, F-250) 4x4
5-Ebony/Graphite Sparkle (F-150, F-250) 4x4
R-Silver/Dark Toreador-upper. Dark Toreador/Silver-lower (F-150, F-250 Lariat)
8-Dark Blue/Coral Peach-upper and lower (F-150, F-250 Lariat)
9-Bright Green/Pacific Green-upper, Pacific Green/Bright Green-lower (F-150, F-250 Lariat)
S-Silver/Ebony/Silver-upper, Ebony/Silver/Ebony-lower (F-150, F-250 Lariat)
C-Light Prairie Tan/Heliotrope (F-150, F-250) 4x2
F-Light Prairie Tan/Medium Titanium (F-150, F-250) 4x4
V-Violet Metallic kit (Explorer XLT)
W-Light Willow kit (Explorer XLT)
R-Medium Santa Fe kit (Explorer XLT)
P-Platinum kit (Explorer XLT)
G-Anniversary Gold (Mountaineer)
P-Oxford White/Platinum (Mountaineer)
R-Toreador Red/Platinum (Mountaineer)
W-Medium Wedgewood/Platinum (Mountaineer)
Y-Pacific Green/Platinum (Mountaineer)
L-Ebony/Platinum (Mountaineer)
O-Light Pearl Gold Metallic (Explorer Limited)
1-Charcoal Green (Explorer Limited)
2-Desert Violet (Explorer Limited)
3-Ebony (Explorer Limited)
P-Platinum (Ranger XLT "Off Road")
S-Silver (Ranger XLT "OffRoad")
B-Blue/Dark Blue (Ranger XLT)
C-Copper/Gold (Ranger XLT)
G-Green/Gold (Ranger XLT)
T-Teal (Ranger Splash)
V-Violet (Ranger Splash)
4-Silver/Medium Graphite (Ranger SE/LE)
5-Beige/Brown (Ranger SE/LE)
8-Santa Fe/Woodrose (Ranger SE/LE)

 

Yeah i used something like that. Ok so i did decode it right. So now i need to get my oil. I read that the red line 75w140 i believe it was was the best plus a bottle of friction modifier from the ford guys. I saw the tags that are bolted on the diff i will get under there and write them down before i go buy anything.

 

Any synthetic 75w140 is fine - even the Walmart Supertech. Use the Ford modifier with it.

 

sub'd to this thread

 

Well from what i understand from some research i have been doing different brands absorb water better then others. This was one of the reasons i found people to prefer the redline over walmart brands. I could be completely wrong but i just want to be sure. And i do understand that water should never get in the diff but you know what they say... sh... crud happends. hah