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Home
All Products
By Axle
By Brand
By Vehicle
- Chevrolet
  - K5
  - K10
  - K20
  - K30
  - 2500HD
  - 4500HD
- Dodge
  - Ram 1500
  - Ram 2500
  - Ram 3500
  - Ram 4500
  - Ram 5500
- Ford
  - F-150
  - F-250
  - F-350
  - F-450
  - Bronco
  - New Bronco (2021+)
  - Ranger
- GMC
  - K5
  - K15
  - K25
  - K35
  - 2500HD
- Jeep
- Ram
  - 1500
  - 2500
  - 3500
  - 4500
  - 5500
- Toyota
  - Hilux
  - Tacoma
  - T100
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Home › Spicer › 1550 + Bolt and Strap

Availability

DISCONTINUED

Axle Location

Front
Rear

Axle Model

Axle Shaft Length

Axle Shaft Location

Inner
Left
Left Assembly
Left Inner
Outer
Right
Right Assembly
Right Inner

Bearing ID

.625"
1.125"
1.187"
1.250"
1.311"
1.375"
1.406"
1.500"
1.560"
1.625"
1.690"
1.750"
1.781"
1.795"
1.875"
1.969"
1.990"
2.000"
2.125"
2.250"
2.500"
2.625"
2.8125"
50MM

Bearing Location

Front Inner
Front Outer
Rear Inner
Rear Outer

Bearing OD

.812"
1.625"
1.750"
1.875"
2.240"
2.531"
2.5312"
2.560"
2.690"
2.8438"
2.870"
2.875"
2.891"
3.000"
3.063"
3.250"
3.265"
3.307"
3.500"
3.812"
3.950"
4.125"
4.134"
4.375"
4.440"
4.591"
84MM

Bearing Thickness

1.000"

Bolt Circle

3.500"
3.563"
3.674"
3.750"
4.000"
4.250"
4.375"
4.750"

Brand

ARB
Down To Fab
Eaton
LOCTITE
Spicer
Warn
Yukon

Butt Diameter

1.770"
2.742"
2.845"

Carrier Break

3.55 and Down
3.73 and Up
3.92 and Up
4.10 and Down
4.10 and Up
4.56 and Up

Carrier Required

3.73 and Down
3.73 and Up
3.92 and Up
4.10 and Down
4.10 and Up
4.56 and Up

Differential Carrier Deck Height

1.938"

Differential Design

High Pinion
Low Pinion

Differential

Automatic Locker
Full Spool
Limited Slip
Selectable

Driveshaft Location

Front
Rear

Driveshaft

CV Joint

Gear Ratio

3.55
3.73
4.09
4.10
4.30
4.56
4.88
4.89
5.13
5.29
5.38
5.43
5.86

Gear Thickness

Thick
Thin

Grease Fitting Location

Caps
Cross

Greaseable

No
Yes

Hardware Strength

Class 10.9
Class 9.8
Grade 8
Grade 9

Knurl Diameter

.653"

Material

4138 Chromoly
4340 Chromoly
Aluminum
Brass
Cork
Forged Steel
Plastic
Rubber
Steel

Pilot Size

1.811"
2.000"
2.375
2.558"
2.680"
2.750"
2.953"
3.125"
3.750"

Pilot

Female
Male

Pinion Preload

Crush Sleeve
Shimmed

Product Line

SVL

Product Type

Reluctor Ring Tooth Count

52
54
58

Ring Gear Diameter

10"
10.25"
10.75"
11.250"
7.13"
7.32"
8.5"
8.8"
8.9"
9.0"
9.750"

Seal ID

Seal OD

Seal Surface Diameter

1.470"
1.552"
1.562"
1.625"
1.667"
1.750"
1.810"
1.844"
1.875"
1.885"
2.125"
2.201"
2.300"
2.500"

Shaft Location

Left
Left Assembly
Left Inner
Outer
Right
Right Assembly
Right Inner

Shim ID

1.263"
1.380"
1.645"
1.705"
1.712"
1.770"
1.890"
2.000"
2.100"
2.343"
2.445"
2.465"
2.875"
3.000"
3.031"
3.145"
3.495"
3.795"

Shim OD

1.627"
2.130"
2.145"
2.240"
2.250"
2.375"
2.600"
2.850"
2.935"
2.950"
3.190"
3.300" OD
3.484"
3.790"
4.010"
4.122"
4.470"

Slip OD

1.885"
1.886”

Snap Ring Location

External
Internal

Spline Count

10
15
16
18
19
24
26
27
28
29
30
31
32
33
34
35
36
37
40
55

Spline Diameter

1.125"
1.170"
1.250"
1.375"
1.377"
1.378"
1.390
1.401"
1.500"
1.564"
1.615"
1.616"
1.748"

Thread Size

Transfer Case Model

Dana 300
NP231

Tube OD

1.250"
1.500"
1.750"
2.000"
2.125"
2.500"
2.750"
3.000"
3.500"
4.000"

Tube Wall

.065"
.083"
.095"
.120"
.134"
.188"

U-Joint Series

U-Joint Size

5-7166X
5-760X
5006813
SPL100-1X
SPL55-3X
SPL55-4X
SPL70-1550XC
SPL70-1X
SPL70-4X
SPL70X

Universal Joint Cap Diameter

.938"
1.062"
1.079"
1.125"
1.142"
1.188"
1.260"
1.375"
1.625"

Universal Joint Snap Ring Distance

1.500"
2.047"
2.120"
2.188"
2.406"
2.520"
2.556"
2.625"
2.920"
3.000"
3.219"
3.625"
3.737"
3.780"
4.178"
4.181"
4.188"
4.957"
4.964"
4.965"

Vehicle Make

Chevrolet
Dodge
Ford
GMC
Hummer
International Harvester
Isuzu
Jeep
Nissan
Plymouth
Ram
Toyota

Vehicle Model

Wheel Bolt Pattern

5x4.5"
5X5"
5x5.5"
6x5.5"
8X6.5"

Yoke Style

Bolt and Strap
U-Bolt

Spicer

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