FORD MUSTANG 2003 Workshop Manual

8. Remove the differential side gears (4236) and the differential side gear thrust washers (4228).
Assembly 1. Lubricate the differential side gear thrust washers and the differential side gear journals, and assemble the washers to the gears.
zUse SAE 80W- 90 Premium Rear Axle Lubricant XY-80W90- QL or equivalent meeting
Ford specification WSP- M2C197-A.
2. Lubricate the differential pinion thrust washers and the differential pinion gears, and assemble the washers to the gears.
zUse SAE 80W- 90 Premium Rear Axle Lubricant XY-80W90- QL or equivalent meeting
Ford specification WSP- M2C197-A. Klj . 3 ba
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3. Position the differential side gear and thrust washer assemblies in the differential case.
4. Engage the differential pinion gears with the differential side gears and rotate the pinion gears
to align with the differential pinion shaft bore.
5. Insert the differential pinion shaft. zAlign the hole in the differential pinion shaft with the hole in the differential case.
6. NOTE: If a new bolt is unavailable, coat the original bolt threads with Threadlock and Sealer
EOAZ- 19554- AA or equivalent meeting Ford specifications WSK-M2G351- A5 prior to Klj . 4 ba
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installation.
Install a new bolt finger-
tight.
7. Using the special tool, install the new differential bearings, if removed.
8. Position the ring gear and the differential case. Align the bolt holes by starting two bolts through the holes in the differential case and the ring gear. Press the ring gear on the differential case.
9. Install the bolts. zApply Stud and Bearing Mount EOAZ-19554- BA or equivalent meeting Ford specification
WSK- M2G349- A1 to the bolt threads. Klj . 5 ba
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10. Install the differential case. For additional information, refer to
Differential Case in this section. Klj . 6 ba
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SPECIFICATIONS
a
If it is necessary to refill a Traction- Lok® axle with new lubricant, add 118 ml (4 oz) of Additive
Friction Modifier C8AZ-19B546-A or equivalent meeting Ford specification EST- M2C118-A before
filling the axle with the new lubricant.
b In- vehicle repair refill capacities are determined by filling the rear axle with the specified lubricant to
6.4- 14.3- mm (1/4- 9/16-in) below the bottom of the fill hole.
SECTION 205-
02B: Rear Drive Axle/Differential — Ford 8.8-Inch Ring
Gear 2003 Mustang Workshop
Manual General Specifications
Item Specification
Lubes and Sealers
SAE 75W-
140 High Performance Rear Axle
Lubricant
F1TZ- 19580- B WSL-
M2C192- A Premium Long-
Life Grease XG -1-C ESA-
M1C75- B Rust Penetrant and Inhibitor F2AZ-19A501-
A ESR-
M99C56- A High Temperature Nickel Anti-
Sieze Lubricant
F6AZ- 9L494- AA ESE-
M124A- A Additive Friction Modifier C8AZ-
19B546-A EST-
M2C118- A Clear Silicone Rubber D6AZ-
19562-AA ESB-
M4G92- A Threadlock and Sealer EOAZ-19554-
AA WSK-
M2G351- A5 Lubricant Fill Level Checks
Additive Friction Modifier 118 ml (4 oz)
Approximate axle fill capacity
a b 1.66-1.77-
liters (3.5-3.75-pints)
6.4-14.3- mm (1/4-9/16- in) below the bottom of
the fill hole Clearance, Tolerance and Adjustments
Maximum ring gear back face runout 0.102 mm (0.004 in)
Maximum differential case runout 0.076 mm (0.003 in)
Differential side gear thrust washer thickness 0.762 mm -
0.813 mm (0.030 in - 0.032 in) Differential pinion gear thrust washer thickness 0.762 mm -
0.813 mm (0.030 in - 0.032 in) Maximum axle shaft end play 0.762 mm (0.030 in)
Ring gear backlash 0.203 mm -
0.381 mm
(0.305 mm - 0.381 mm preferred)
0.008 in - 0.015 in
(0.012 in - 0.015 in preferred) Variation between teeth maximum backlash 0.102 mm (0.004 in)
Pinion flange runout 0.25 mm (0.010 in) T.I.R.
Torque Specifications Description Nm lb-
ft lb-
in Bolt retaining the differential pinion shaft to the differential case 30 22 —
Bolt retaining the driveshaft yoke to the pinion flange 112 83 —
Bolt retaining the differential housing cover to the differential housing 44 32 — Klj . 1 ba
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Oil filler plug 30 22 —
Pinion bearing preload (used pinion bearings) 0.9-
1.5 — 8-
14 Pinion bearing preload (new pinion bearings) 1.8-
3.3 — 16-
29 Adapter for 205-
S127 2.2 — 20
Bolt retaining the bearing cap to the differential case 105 77 —
Bolt retaining the ring gear to the differential case 105 77 — Klj . 2 ba
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DESCRIPTION AND OPERATION
Rear Drive Axle and Differential
SECTION 205-
02B: Rear Drive Axle/Differential — Ford 8.8-Inch Ring
Gear 2003 Mustang Workshop
Manual Item Part Number Description
1 4236 Differential side gear
2 4228 Differential side gear thrust washer
3 4221 Differential bearing Klj . 1 ba
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4 4222 Differential bearing cup
5 4067 Differential bearing shim
6 4216 Rear axle differential gear case bolt
7 4204 Differential case
8 — Ring gear (part of 4209 gearset)
9 — Bearing cap (part of 4010)
10 4010 Rear axle housing
11 373098-
S Filler plug
12 4662 Collapsible spacer
13 4670 Rear axle drive pinion shaft oil slinger
14 4676 Rear axle drive pinion seal
15 4851 Pinion flange
16 389546-S100 Pinion nut
17 4621 Differential pinion bearing
18 2C026 Rear brake disc
19 — Axle shaft flange (part of 4234)
20 2C189 Rear brake anti-
lock sensor indicator 21 2552 Rear disc brake caliper
22 N601951-S2 Bolt
23 N804361-S100 Clip
24 — Bolt (part of 4010)
25 2C190 Rear brake anti-
lock sensor 26 2C101 Left hand rear disc brake adapter
27 2C100 Right hand rear disc brake adapter
28 N8015163-S190 Caliper anchor bolt
29 2C028 Rear wheel brake disc shield
30 N602726-S2 Bolt (3 req'd)
31 4616 Differential drive pinion bearing cup
32 4628 Rear axle pinion bearing cup
33 4630 Differential pinion bearing
34 — Drive pinion gear (part of 4209 gearset)
35 4663 Drive pinion bearing adjustment shim
36 — Bolt (part of 4010)
37 4241 Differential pinion shaft lock bolt
38 4211 Differential pinion shaft
39 4N237 U-
washer 40 383548 Bolt
41 — Rear axle identification tag (part of 4001)
42 4033 Differential housing cover
43 4230 Differential pinion thrust washer
44 4215 Differential pinion gear Klj . 2 ba
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z
The axle housing assembly consists of a cast center section with two steel tube assemblies and
a stamped differential housing cover (4033). The differential housing cover uses silicone sealant
as a gasket.
z The hypoid- design gearset consists of 8.8- inch ring gear (4209) and a drive pinion gear (4209).
Two opposed tapered roller bearings support the drive pinion in the axle housing (4010).
z A collapsible spacer (4662), located on the differential pinion shaft, maintains pinion bearing
preload. The pinion nut (389546- S100) adjusts the preload.
z Differential bearing shims (4067), located between the differential bearing cups (4222) and the
rear axle housing, adjust the differential bearing preload and the ring gear backlash.
z The differential case (4204) is a one- piece design with two openings to allow for assembly of
the internal components and lubricant flow. Two opposed tapered roller bearings (differential
bearings) (4221) support the differential case in the axle housing. Removable bearing caps
(4010) retain the differential assembly in the axle housing.
z Inside the differential case, the differential pinion shaft (4211) supports two differential pinion
gears (4215). The pinion gears engage the differential side gears (4236), to which the axle
shafts (4234) are splined. The differential pinion shaft lock bolt (4241) retains the differential
pinion shaft in the differential case.
z An embossed metal tag, bolted to the differential housing cover, contains rear axle
identification. Klj . 3 ba
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IN-
VEHICLE REPAIR
Axle Shaft
Removal 1. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
2. Remove the wheel and tire assembly. For additional information, refer to Section 204 - 04 .
3. Remove the rear brake disc (2C026). For additional information, refer to Section 206 - 04 .
4. Remove the differential housing cover (4033) and drain the lubricant. For additional information, refer to Differential Housing Cover in this section.
5. Remove the differential pinion shaft (4211). 1. Remove the differential pinion shaft lock bolt (4241).
2. Remove the differential pinion shaft.
6. CAUTION: Do not damage the rubber O- ring in the axle shaft groove.
Remove the U- washer (4N237).
1. Push the axle shafts (4234) inboard.
2. Remove the U- washer.
7. CAUTION: Damage to the rear brake anti- lock sensor (2C190) may occur if it is not
removed before the axle shaft.
Carefully remove the rear brake anti- lock sensor. For additional information, refer to Section SECTION 205-
02B: Rear Drive Axle/Differential — Ford 8.8-Inch Ring
Gear 2003 Mustang Workshop
Manual Klj . 1 ba
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