Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Rear Diff Diagram

Thread Tools
 
Search this Thread
 
Old Jun 29, 2011 | 10:35 PM
  #1  
preppypyro's Avatar
preppypyro
Thread Starter
|
FTE Legend
20 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
Rear Diff Diagram

Hey guys and gals,

I had to change a u-joint in my truck tonight and noticed I had some play where the driveshaft connects to the rear diff (forgive my terminology, but the yoke i believe?)

Anyways I would like to check out a parts diagram, or whatever they are called, so i can see whats involved in possibly repairing this problem before I throw the rear driveshaft back on, or before I go spend 500 bucks on a new-used differential.

Anyone had a similar problem and repair it? Ive always been hesitant to rip apart the rear end on my truck, and to be honest its going to get replaced in a few years so i dont wanna go and buy a brand new diff as well.

Welcome all thoughts, experience, opinions, advice and discussion!
 
Reply
Old Jun 29, 2011 | 10:38 PM
  #2  
djanzen's Avatar
djanzen
Elder User
Joined: Nov 2009
Posts: 636
Likes: 0
From: Saskatoon
Club FTE Silver Member

How much play Sheldon? I have a factory manual if you need it. Lots of tools also!! You bring the refreshments and I repair!! Is there any movement up/down sideways or in out? if not it is most likely ok. they do have some backlash in the gears!
 
Reply
Old Jun 29, 2011 | 10:44 PM
  #3  
mueckster's Avatar
mueckster
Lead Driver
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Name:  10.5 diff.gif
Views: 181702
Size:  52.9 KB
Item Part Number Description
1 — Rear axle identification tag (Part of 4001)
2 4346 Differential housing cover bolt
3 4033 Differential housing cover
4 4241 Differential pinion shaft lock bolt
5 391973-S1300 Differential case bolt
6 4230 Differential pinion thrust washer
7 4215 Differential pinion gear
8 4211 Differential pinion shaft
9 4236 Differential side gear
10 4228 Differential side gear thrust washer
11 4067 Differential bearing shim
12 4222 Differential bearing cup
13 4221 Differential bearing
14 4216 Ring gear bolt
15 4204 Differential case
16 4B409 Anti-lock speed sensor ring
17 4209 Ring gear and pinion
18 4663 Drive pinion bearing adjustment shim
19 — Bearing cap and bolt
(part of 4010)
20 4630 Pinion bearing— (inner)
21 4628 Inner axle pinion bearing cup
22 9E731 RABS sensor
23 4616 Outer pinion bearing cup
24 4662 Collapsible spacer
25 4621 Pinion bearing (outer)
26 4670 Rear axle drive pinion shaft oil slinger
27 4676 Rear axle drive pinion seal
28 4851 Pinion flange
29 389546-S100 Pinion nut
30 1244 Rear wheel bearing inner cone and roller
31 1177 Wheel bearing oil seal
32 1107 Lug bolt
33 4234 Axle shaft
34 N811648-S100 Axle shaft nut
35 1012 Lug nut
36 2C026 Rear disc brake rotor
37 1109 Rear hub
38 390258-S Gasket
39 1240 Bearing
40 1A034 Hub and bearing cup
41 1113 Rear brake hub and drum (DRW only)
42 4947 Differential clutch pack
43 4A324 Rear axle differential clutch shim
44 4214 Differential clutch spring
45 390943-S100 Filler plug
46 4010 Rear axle housing
47 2209 Brake adapter plate
 
Reply
Old Jun 29, 2011 | 11:06 PM
  #4  
preppypyro's Avatar
preppypyro
Thread Starter
|
FTE Legend
20 Year Member
Liked
Loved
Community Favorite
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
You guys rock!

Dean I never realized you worked on the diffs, but it does have a little side to side and up and down play, when I turn the yoke clockwise, and take the slack out of it. Im thinking at most 1/8" side to side, up and down, and maybe not even that much in and out.

When I turn the yoke counter clockwise and "tighten" the slack up, there is no play at all.
The rear axle drive pinion seal seems to be sloppy in the housing as well, but there is no signs of leaking at all.

Roland thank you so much for the diagram, very much appreciate it.
 
Reply
Old Jun 29, 2011 | 11:15 PM
  #5  
mueckster's Avatar
mueckster
Lead Driver
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Originally Posted by preppypyro
You guys rock!

Dean I never realized you worked on the diffs, but it does have a little side to side and up and down play, when I turn the yoke clockwise, and take the slack out of it. Im thinking at most 1/8" side to side, up and down, and maybe not even that much in and out.

When I turn the yoke counter clockwise and "tighten" the slack up, there is no play at all.
The rear axle drive pinion seal seems to be sloppy in the housing as well, but there is no signs of leaking at all.

Roland thank you so much for the diagram, very much appreciate it.
You're welcome, Sheldon. Sounds like you may need new pinion bearings, races, crush sleeve, and seal.
 
Reply
Old Jun 30, 2011 | 06:25 PM
  #6  
djanzen's Avatar
djanzen
Elder User
Joined: Nov 2009
Posts: 636
Likes: 0
From: Saskatoon
Club FTE Silver Member

Originally Posted by mueckster
You're welcome, Sheldon. Sounds like you may need new pinion bearings, races, crush sleeve, and seal.
sounds like a detailed inspection is required for sure!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bhds1
Escape & Escape Hybrid
20
Jan 26, 2022 03:10 PM
Zacbkennedy
1973 - 1979 F-100 & Larger F-Series Trucks
15
Feb 7, 2017 08:14 AM
WolfCreek540
6.0L Power Stroke Diesel
2
Jun 9, 2016 01:37 AM
nvrsadi
1999 - 2003 7.3L Power Stroke Diesel
10
May 17, 2016 05:19 PM
twayneb
1999 - 2016 Super Duty
20
Dec 15, 2007 07:39 AM




All times are GMT -5. The time now is 08:51 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE