Rear Diff Diagram
Thread Starter
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FTE Legend
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!
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!
Elder User
Joined: Nov 2009
Posts: 636
Likes: 0
From: Saskatoon
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!
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
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
Thread Starter
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FTE Legend
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.
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.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
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.
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.
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