Category: Axle Help

Transfer Case Identification

AMC JEEP TRANSFER CASE

Find your AMC/Jeep vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1980-1990

with 4, with 5 Speed

Jeep with NP 208

Transfer_Case_NP_208_Synchro_small

 

1981-1991

Cherokee, Comanche, Wagoneer, J10/20, Grand Wagoneer

Jeep with NP 229

Transfer_Case_NP_228-229J_small

 

1987-1997

Cherokee, Comanche, Wrangler YJ, Wagoneer

Jeep with NP 231

Transfer_Case_NP_231C_small

 

1987-1997

Grand Cherokee, Cherokee Selec Trac

Jeep with NP 242

Transfer_Case_NP_242J_small

 

1992-1997

Grand Cherokee

Jeep with NP 249

Transfer_Case_NP_249J_small

 

CHRYSLER / DODGE TRANSFER CASE

Find your Chrysler/Dodge vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1969-1993

D100/D350

Dodge with NP 205

Transfer_Case_NP_205_small

 

1980-1983

D100-D350

Dodge with NP 208 Non-Synchro

Transfer_Case_NP_208_Non_Synchro_small

 

1982-1987

D100-D350

Dodge with NP208 Synchro

Transfer_Case_NP_208_Synchro_small

 

1988-1997

Dakota

Dodge with NP 231

Transfer_Case_NP_231D_small

 

1988-1997

A&W 150/3500, 2500, 3500

Dodge with NP 241

Transfer_Case_NP_241D_small

 

 

FORD TRANSFER CASE

Find your Ford vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1969-1979

F150/F250

Ford with NP 205

Transfer_Case_NP_205_small

 

1980-1986

F150/F350

Ford with NP 208

Transfer_Case_NP_208_Synchro_small

 

1980-1987

F150/F350

Ford with BW 1345

Transfer_Case_BW_1345_small

 

1983-1994

Bronco II, Ranger, Explorer

Ford with BW 1350 Electric Shift

Transfer_Case_BW_1350_Electrical_small

 

1983-1994

Bronco II, Ranger, Explorer

Ford with BW 1350 Part-Time Manual

Transfer_Case_BW_1350_Mechanical_small

 

1983-1998

Bronco II, Ranger, Explorer

Ford with BW 1354 Electric Shift

Transfer_Case_BW_1354_Electrical_small

 

1983-1998

Bronco II, Ranger, Explorer

Ford with BW 1354 Part-Time Manual

Transfer_Case_BW_1354_Mechanical_small

 

1987-1997

F150/350

Ford with BW 1356 Electric Shift

Transfer_Case_BW_1356_Electrical_small

 

1987-1997

F150/350

Ford with BW 1356 Part-Time Manual Shift

Transfer_Case_BW_1356_Mechanical_small

 

1995-1997

Ford Explorer 5L

Ford with BW 4404

Transfer_Case_BW_4404_small

 

1995-1997

Ford Explorer 4L

Ford with BW 4405

Transfer_Case_BW_4405_small

 

1996-1997

Ford F150/F350, Expedition

Ford with BW 4406

Transfer_Case_BW_4406_small

 

1994-1997

Ford F150/F350

Ford with BW 4407

Transfer_Case_BW_4407_small

 

 

GMC / CHEVY TRANSFER CASE

Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1969-1991

GMC, Chevrolet with NP 205

Transfer_Case_NP_205_small

 

1981-1988

K & V 10,20,25

GMC, Chevrolet with NP 208

Transfer_Case_NP_208_Synchro_small

 

1989-1991

GMC, Chevrolet with BW 1370

Transfer_Case_BW_1370_small

 

1989-1995

K3500

GMC, Chevrolet with BW 4470

Transfer_Case_BW_4470_small

 

1991-1995

K30-R05

GMC, Chevrolet with BW 4401

Transfer_Case_BW_4401_small

 

1988-1997

S10

GMC,Chevrolet with NP 231

Transfer_Case_NP_231J_small

 

1988-1997

S10

GMC, Chevrolet with NP 233

Transfer_Case_NP_233C_small

 

1988-1996

K15/35

GMC, Chevrolet with NP 241

Transfer_Case_NP_241C_small

 

1996-1997

Blazer, Tahoe, Yukon, Suburban

GMC, Chevrolet with NP 243

Transfer_Case_NP_243C_small

 

1990-1997

Bravada, Van

Oldsmobile Truck with BW 4472

Transfer_Case_BW_4472_small

Drive Line Measurements

Because there are so many variables that could cause you not to get the proper fit or maximum performance from your drive line, we manufacture each drive line one at a time for your specific vehicle. Therefore, we ask that you take a few moments to give us the measurements needed to build you the best performing drive line available.  The step by step instructions below should walk you right through the process.  If you have any questions please e-mail us and we’ll be happy to help.

Step 1:  Determine The Style Of Drive Line You Require.
Note:  Extreme Custom Applications May Require A Different Style Than Original

Drive_Line_Measurement_Guide_Step_1

Step 2:  Determine Attachment Type Required At Each End.
Note:  This Step May Not Be Required On Pure Stock Applications.

Drive_Line_Measurement_Guide_Step_2

Step 3:  Determine Proper Working Length.

Drive_Line_Measurement_Guide_Step_3

Axle Measurements

Get Axle Measurements

It is important to get accurate measurements off of your axle because of the many different models and applications.  Not all vehicles are built the same.  Some have wider frames and some have narrower.   Also, the track width varies from year to year and vehicle to vehicle.  To be sure that we provide you with an axle that will replace your existing one, we need to have accurate measurements.  The measurements that we need are listed on the diagram below.

We need a measurement from:
Spring perch center to spring perch center
Backing plate to backing plate
Hub face to hub face (if possible)

If the axle is still under your vehicle and you still have the tires and wheels on, the hub face measurement will be difficult for you to get.  In this case, it is not necessary.  If you have the axle out and can give us this measurement, it would be helpful.

In some vehicles you may have a coil spring setup or a leaf spring setup.   We will need to know if it is coil spring or leaf spring.

Diagram:

Axle Measurement Diagram

Axle Ratio

Find Axle Ratio

There are a few different methods you can use to determine the ratio of your axle, depending on what model of axle you have.  These ideas should help you in determining the ratio of your axle:

The most sure way to determine your ratio is to count the number of teeth on the ring gear and divide it by the number of teeth on the pinion.  For example, if you count 41 teeth on the ring gear and 9 teeth on the pinion, you would divide 41 by 9=4.56.  Your ratio would be 4.56:1.  That means that for every time your axle shaft makes one complete rotation, your driveline will turn 4.56 complete revolutions.

Another method that can be used on a Dana axle, and in most cases will work on other axles, is to get all of the numbers off of the edge of the ring gear.   If you forward those numbers to me, I can look them up and determine what ratio you have.

Also on a Dana axle, if you can find a bill of material number and forward it to me, I can look it up and it will tell me what ratio you have, assuming that there have not been any modifications made to your axle since it was manufactured.

In some cases, there is a metal tag bolted on somewhere around the differential cover.  This tag should have the ratio stamped on it.

If none of these methods work for you, don’t give up hope.  You can always call your local Ford, GM, Jeep, or Chrysler dealer with your vehicle’s VIN number, and they should be able to tell you what ratio you have.  Again, this is assuming that there have not been any modifications made to your axle since it was manufactured.

Attention 4WD Owners:

If by chance you have a 4WD vehicle, and cannot find any information on one of your axles, check the other, as it will be the same ratio.  Remember, this only applies to a 4WD vehicle.

For example, I have had many cases where someone has blown up their rear end to the point where they could not count the number of teeth on the ring gear or pinion, or find any numbers on the ring gear to determine the ratio.  We were able to check the front axle and determine the ratio that way.   This is why ratio is very important in a 4WD vehicle.

I have had people swap out their rear end and not match the ratio in the front with the ratio in the rear.   They drive their vehicle in two wheel drive without any problems, until they shift into 4WD.   When they engage the 4WD and try to drive the vehicle, all heck breaks loose!   Because the front axle is turning at a different speed than the rear, something has to give.  It can be almost anything, transfer case, driveline, ring & pinion, or axle shaft.  Something will break!

Rear Axle Identification

To help you find the right part, we first need to properly identify the axle you have or need. Not all vehicles are set up the same, even though they may be the same make and model.

For example:
A Chevy 1/2 ton pick-up may have a Chevy 10 bolt rear axle or a 12 bolt rear axle. Both of these are semi-floating axles.

A Chevy 3/4 ton pick-up may have a 14 bolt semi-float rear axle or a 14 bolt full-floating axle.

All of these axles take different parts so we need to properly identify the axle you have to get you the right part.

Semi-Floating Axle / Full-Floating Axle

Semi Floating Axle14 Bolt Full-Floating Axle

 

AMC JEEP REAR AXLES

Find your AMC/Jeep vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1985-1997

Military Jeep, Cherokee/Comanche, Wrangler, Grand Cherokee

Jeep with

Dana 35/194

Dana_Model_35_small

 

1977-1997

 

Civilian Jeep, Pickup Truck, Wrangler, Cherokee, Comanche, Grand Cherokee

Jeep with Dana 44

Dana_Model_44_small

 

1978-1988

Civilian Jeep, Pickup Truck

Jeep with Dana 60

Dana_Model_60_small

CHRYSLER / DODGE REAR AXLES

Find your Chrysler/Dodge vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1986-1995

Dakota

Dodge with 7.25″ Ring Gear

Chrysler_7_25_Ring_Gear_small

 

1971-1997

A&D 100/150, B150/250, Dakota

Dodge with 8.25″ Ring Gear

Chrysler_8_25_Ring_Gear_small

 

1972-1997

Ram Pickup, A, D&W 100/150

Dodge with 9.25″ Ring Gear

Chrysler_9_25_Ring_Gear_small

 

1979-1993

B300, BD600, C300, D200-D700, W200, MB300, MD300, W200HD, Maxivan

Dodge with Dana 60

 

Dana_Model_60_small

 

1979-1993

CB300, CB400, D300-D600, M300-M500, MB400, W300-W400, WM300 & P300

Dodge with Dana 70

Dana_Model_70_small

 

FORD REAR AXLES

Find your Ford vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1983-1997

Aerostar, Ranger

Ford with 7.5″ Ring Gear

Ford_7_5_Ring_Gear_small

 

1984-1997

Aerostar, Ranger, E&F 150/250, Explorer, Mountaineer, Bronco, Expedition

Ford with 8.8″ Ring Gear

Ford_8_8_Ring_Gear_small

 

1957-1986

All Light Trucks

Ford with 9″ Ring Gear

Ford_9_Ring_Gear_small

 

1985-1997

All Light Trucks

Ford with 10.25″ Ring Gear

Ford_10_25_Ring_Gear_small

 

1985-1989

Aerostar

Ford with Dana 30

Dana_Model_30_small

 

1979

F-100 & F-150

Ford with Dana 44

Dana_Model_44_small

 

1979-1997

E-250 & E-350,

F-250 & F-350

Ford with Dana 60

Dana_Model_60_small

 

1979-1987

E-250 & E-350,

F-250 & F-350

Ford with Dana 61

Dana_Model_60_small

 

1979-1997

E-350(DSO,U-Haul, Motor Home), F-350(Ambulance, 6 Wheeler,

Big Dooley, U-Haul, Dual Wheel)

Ford with Dana 70

Dana_Model_70_small

 

1988-1997

F-350 Super Duty

Ford with Dana 80

Dana_80_Diff_Cover_small

 

 

The Dana Models 60 and 61 look the same and have the same shape differential cover. The most noticeable difference is the reinforced cast iron differential in the Dana 61. The best way to be sure of which axle you have is by the Bill of Material Number stamped on the right hand axle tube. See the Spicer Axle Identification information.

 

GMC / CHEVY REAR AXLES

Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1982-1997

S10

GM with 7.5″ & 7.625″ Ring Gears

GM_10_Bolt_7_5_Ring_Gear_small

 

1985-1997

CK 15/35, S10, RV

GM with 8.5″ Ring Gear

GM_10_Bolt_8_5_Ring_Gear_small

 

1969-1981

CP1, G2

GM with 8.875″ Ring Gear

GM_12_Bolt_8_875_Ring_Gear_small

 

1992-1997

CK15/35, G 10/30

GM with 9.5″ Ring Gear

GM_14_Bolt_9_5_Ring_Gear_small

 

1974-1997

CK35 & G30, V15/35

GM with10.5″ Ring Gear

GM_14_Bolt_10_5_Ring_Gear_small

 

1979-1991

DRW G-Van

GM with Dana 60

Dana_Model_60_small

 

1979-1991

CK 30, R/V30, P 30, P 300,

G 300, G-Van

GM with Dana 70

Dana_Model_70_small

Front Axle Identification

To help you find the right part, we first need to properly identify the axle you have or need. Not all vehicles are set up the same, even though they may be the same make and model.

All of these axles take different parts so we need to properly identify the axle you have to get the right part.

 

AMC JEEP FRONT AXLES

 

Find your AMC/Jeep vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1978-1997

CJ5, CJ7, Cherokee/Comanche, Wrangler, Grand Cherokee

Jeep with Dana 30

Dana_Model_30_small

 

1978-1992

J10, J20, Cherokee, Honcho, Grand Wagoneer

Jeep with Dana 44

Dana_Model_44_small

 

CHRYSLER / DODGE REAR AXLES

 

Find your Chrysler/Dodge vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1986-1995

Dakota

Dodge with 7.25″ Ring Gear

Chrysler_7_25_Ring_Gear_small

 

1971-1997

A&D 100/150, B150/250, Dakota

Dodge with 8.25″ Ring Gear

Chrysler_8_25_Ring_Gear_small

 

1972-1997

Ram Pickup, A, D&W 100/150

Dodge with 9.25″ Ring Gear

Chrysler_9_25_Ring_Gear_small

 

1979-1993

B300, BD600, C300, D200-D700, W200, MB300, MD300, W200HD, Maxivan

Dodge with Dana 60

 

Dana_Model_60_small

 

1979-1993

CB300, CB400, D300-D600, M300-M500, MB400, W300-W400, WM300 & P300

Dodge with Dana 70

Dana_Model_70_small

 

FORD FRONT AXLES

 

Find your Ford vehicle in the chart below and click on the illustration for a larger view.

 

Year

Vehicle

Model

Diagram

1983-1997

Ranger, Aerostar, Bronco II

Ford with Dana 28IFS

Dana_28354450IFS_small

 

1992.5-1997

Ranger

Ford with Dana 28IFS

Dana_28354450IFS_small

 

1990-1992.5

Bronco II, Ranger, Explorer

Ford with Dana 35IFS

Dana_28354450IFS_small

 

1992.5-1997

Ranger, Explorer

Ford with Dana 35IFS

Dana_28354450IFS_small

 

1979

F-150 & F-250

Ford with Dana 44

Dana_Model_44_small

 

1980-1996.5

Bronco, Bronco II, F-Series

Ford with Dana 44IFS

Dana_28354450IFS_small

 

1979-1997

F-250 & F-350

Ford with Dana 50IFS

Dana_28354450IFS_small

 

1978-1997

F-250 & F-350

Ford with Dana 60

Dana_Model_60_small

 

 

GMC / CHEVY FRONT AXLES

 

Find your GMC/Chevy vehicle in the chart below and click on the illustration for a larger view.

 

Year
Vehicle
Model
Diagram

1979-1980

Blazer, K-10 & K-30

GM with Dana 44

Dana_Model_44_small

 

1979-1991

K-30, CUCV, V-30

GM with Dana 60

Dana_Model_60_small

 

1985-1986

K-100 & K-200

GM with 8.5″

Illustration Coming Soon

1987-1991

V-100 & V-200

GM with 8.5″

Illustration Coming Soon