Axle/Differential Identification
The following is a list of the more popular axle types.
Chances are, yours is here unless you own a Hummer or Land Rover.
Use the index below for your particuliar make or scroll down the list.
AMC
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AMC Model 20
Specs:
12 bolt Cover
8.875" Ring Gear |
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Ratios:
2.73 3.31 3.54 4.10 |
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Info:
Application: Jeep 1976 to 1986 |
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Chrysler / Dodge
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Chrysler 7.25
Specs:
10 Bolt Cover
7.25 Ring Gear
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Ratios:
3.23 3.55 3.91
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Info:
Application:
Dodge Dakota
Jeep: Cherokee & Wagoneer
. . . (also various cars)
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Chrysler 825
Specs:10 Bolt Cover
8.25 Ring Gear
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Ratios:
3.23 3.55 3.91 4.10 4.56
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Info:
Application:
Dodge 1/2 Ton Pickup
Dodge Dakota
Jeep: Cherokee & Wagoneer
. . . (also various cars)
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Chrysler 925
Specs:
12 Bolt Cover
9.25 Ring Gear
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Ratios:
3.23 3.55 3.90 4.10 4.56
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Info:
Application:
Dodge 1/2 & 3/4 Ton Pickup
1969 - Up
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Dana / Spicer
 Spicer ID locations |
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Dana 30
Specs:
10 Bolt
7.125 Ring Gear
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Ratios: |
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Info:
Application:
Ford:
Early Bronco 72-75
Jeep: CJ-5 Front 75 later (all) CJ-5 & CJ-7 current Cherokee, Comanche & Grand Cherokee Front
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Dana 35
Specs:
10 Bolt
7.56 Ring Gear
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Ratios: |
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Info:
Application:
Ford:
Ranger 4.0 liter Front (IFS) "35C" version Explorer Front (IFS)
Jeep: Cherokee, Comanche Wagoneer & Wrangler Rear
Mazda Navajo Front (IFS)
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Dana 41
Specs:
10 Bolt
8.5 Ring Gear
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Axle Splines:
10, 19, 27, 30 |
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Info:
Application:
Jeep:
early CJ-2A
|
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Dana 44
Specs:
10 Bolt
8.5 Ring Gear
|
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Ratios: |
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Info:
Application:
Ford: 1/2 & 3/4 ton Pickups, Bronco Front (with solid front axle)
Jeep: J-10/J20 & CJ Series Front Grand Wagoneers Front
Dodge: 1/2 and 3/4 ton Pickups
GM: Pre-81 Blazer, Jimmy, & 1/2 & 3/4 ton Pickup
|
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Dana 60
Specs:
10 Bolt
9.75 Ring Gear
|
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Ratios:
4.56 |
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Info:
Application:
1/2, 3/4, & 1 ton Pickups & Vans
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Dana 70
Specs:
10 Bolt
10.54 Ring Gear
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Ratios: |
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Info:Application:
Ford: 3/4 & 1 ton Pickups
Dodge: 3/4 & 1 ton Pickups
GM:
Pre-92 Duallies
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Dana 28, 35, 44, 50, IFS
Specs:
10 bolt
Ring gear size dependant on model. |
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Ratios: |
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Info:
Application:
Ford:
all TTB / Twin I-Beam equipped Fords
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Ford
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Ford 7.5
Specs:
10 Bolt
7.5 Ring Gear
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Ratios:
3.27 3.73 4.10 4.56
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Info:
Application:
Ford: Aerostar Van
Bronco II & non-4.0 Ranger
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Ford 8.8"
Specs:
10 Bolt
8.8 Ring Gear
|
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Ratios:
3.08 3.27 3.55 3.73 4.10 4.56
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Info:
Application:
Ford: 1983-Up Bronco, F-150, 4.0 Ranger, Explorer
Mazda: 1983-Up Navajo
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Ford 9"
Specs:
No Inspection Cover
9.0 Ring Gear
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Ratios:
3.00 3.25 3.50 3.89 4.11 4.57
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Info:
Application:
Ford: 1966 to 1982 (E) F-150, F250 & Bronco |
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Ford 10.25
Specs:
12 Bolt
10.25 Ring Gear
|
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Ratios:
3.55 3.73 4.10 4.56
|
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Info:
Application:
Ford: 1983 - Up F-250, F250HD, & F-350 |
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General Motors
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GM_IFS 725,825,925
Specs: |
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Ratios:
3.08 3.42 3.73 4.10 4.56
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Info:
Application:
GM: 1987 - Up Chev/GMC S10, 1/2, 3/4 & 1 ton |
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GM 10bolt 7.5
Specs:
10 Bolt
7.5 Ring Gear
|
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Ratios:
2.73 3.08 3.23 3.42 3.73 4.10 4.11 4.56
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Info:
Application
GM: S-series rear
Isuzu: Pickup |
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Specs:
10 Bolt
8.5 Ring Gear
|
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Ratios:
3.08 2.73 2.93 3.08 3.23 3.42 3.73 4.10 4.56
|
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Info:
Application:
GM: 1977 to 1991 1/2 & 3/4 ton Chev/GMC front
GM: 1976 - Up 1/2 ton Chev/GMC rear
|
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GM 12 bolt 8.875
Specs:
12 Bolt
8.875 Ring Gear
|
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Ratios:
3.08 3.42 3.73 4.11 4.56
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Info:
Application:
GM 1967 to 1981
Chev/GMC 1/2 & 3/4 ton rear |
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GM 14 bolt 9.5
Specs:
14 Bolt
9.5 Ring Gear
|
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Ratios:
3.23 3.73 4.10 4.56
|
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Info:
Application:
GM: 1964 - Up GM 1/2 & 3/4 ton Pickup & Suburban rear |
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GM 14 bolt 10.5
Specs:
14 Bolt
10.5 Ring Gear |
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Ratios:
3.42 3.73 4.10 4.56 4.88 5.13
Differential Case 6258336 4.10 & Down
6258340 4.56 & Up |
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Info:
Application:
GM: 1973 - Up Chev/GMC 3/4 & 1 ton |
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Toyota
Early Model |
Toyota 7.8
Specs:
7.8 Ring Gear |
Late Model |
Ratios:
4.11 4.56 4.88 5.29 5.71
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Info:
Application:
Toyota: 1979 - p 4-Runner & Pickup |
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