Category: Axle Help

Transfer Case Identification

Posted on January 30, 2015February 2, 2015 by Admin

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
1981-1991	Cherokee, Comanche, Wagoneer, J10/20, Grand Wagoneer	Jeep with NP 229
1987-1997	Cherokee, Comanche, Wrangler YJ, Wagoneer	Jeep with NP 231
1987-1997	Grand Cherokee, Cherokee Selec Trac	Jeep with NP 242
1992-1997	Grand Cherokee	Jeep with NP 249

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
1980-1983	D100-D350	Dodge with NP 208 Non-Synchro
1982-1987	D100-D350	Dodge with NP208 Synchro
1988-1997	Dakota	Dodge with NP 231
1988-1997	A&W 150/3500, 2500, 3500	Dodge with NP 241

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
1980-1986	F150/F350	Ford with NP 208
1980-1987	F150/F350	Ford with BW 1345
1983-1994	Bronco II, Ranger, Explorer	Ford with BW 1350 Electric Shift
1983-1994	Bronco II, Ranger, Explorer	Ford with BW 1350 Part-Time Manual
1983-1998	Bronco II, Ranger, Explorer	Ford with BW 1354 Electric Shift
1983-1998	Bronco II, Ranger, Explorer	Ford with BW 1354 Part-Time Manual
1987-1997	F150/350	Ford with BW 1356 Electric Shift
1987-1997	F150/350	Ford with BW 1356 Part-Time Manual Shift
1995-1997	Ford Explorer 5L	Ford with BW 4404
1995-1997	Ford Explorer 4L	Ford with BW 4405
1996-1997	Ford F150/F350, Expedition	Ford with BW 4406
1994-1997	Ford F150/F350	Ford with BW 4407

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
1981-1988	K & V 10,20,25	GMC, Chevrolet with NP 208
1989-1991		GMC, Chevrolet with BW 1370
1989-1995	K3500	GMC, Chevrolet with BW 4470
1991-1995	K30-R05	GMC, Chevrolet with BW 4401
1988-1997	S10	GMC,Chevrolet with NP 231
1988-1997	S10	GMC, Chevrolet with NP 233
1988-1996	K15/35	GMC, Chevrolet with NP 241
1996-1997	Blazer, Tahoe, Yukon, Suburban	GMC, Chevrolet with NP 243
1990-1997	Bravada, Van	Oldsmobile Truck with BW 4472

Drive Line Measurements

Posted on January 30, 2015 by Admin

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

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

Step 3: Determine Proper Working Length.

Axle Measurements

Posted on January 30, 2015 by Admin

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 Ratio

Posted on January 30, 2015February 22, 2018 by Admin

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!

Spicer Axle Identification

Posted on January 30, 2015 by Admin

Rear Axle Identification

Posted on January 30, 2015February 22, 2018 by Admin

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

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
1977-1997	Civilian Jeep, Pickup Truck, Wrangler, Cherokee, Comanche, Grand Cherokee	Jeep with Dana 44
1978-1988	Civilian Jeep, Pickup Truck	Jeep with Dana 60

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
1971-1997	A&D 100/150, B150/250, Dakota	Dodge with 8.25″ Ring Gear
1972-1997	Ram Pickup, A, D&W 100/150	Dodge with 9.25″ Ring Gear
1979-1993	B300, BD600, C300, D200-D700, W200, MB300, MD300, W200HD, Maxivan	Dodge with Dana 60
1979-1993	CB300, CB400, D300-D600, M300-M500, MB400, W300-W400, WM300 & P300	Dodge with Dana 70

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
1984-1997	Aerostar, Ranger, E&F 150/250, Explorer, Mountaineer, Bronco, Expedition	Ford with 8.8″ Ring Gear
1957-1986	All Light Trucks	Ford with 9″ Ring Gear
1985-1997	All Light Trucks	Ford with 10.25″ Ring Gear
1985-1989	Aerostar	Ford with Dana 30
1979	F-100 & F-150	Ford with Dana 44
1979-1997	E-250 & E-350, F-250 & F-350	Ford with Dana 60
1979-1987	E-250 & E-350, F-250 & F-350	Ford with Dana 61
1979-1997	E-350(DSO,U-Haul, Motor Home), F-350(Ambulance, 6 Wheeler, Big Dooley, U-Haul, Dual Wheel)	Ford with Dana 70
1988-1997	F-350 Super Duty	Ford with Dana 80

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
1985-1997	CK 15/35, S10, RV	GM with 8.5″ Ring Gear
1969-1981	CP1, G2	GM with 8.875″ Ring Gear
1992-1997	CK15/35, G 10/30	GM with 9.5″ Ring Gear
1974-1997	CK35 & G30, V15/35	GM with10.5″ Ring Gear
1979-1991	DRW G-Van	GM with Dana 60
1979-1991	CK 30, R/V30, P 30, P 300, G 300, G-Van	GM with Dana 70

Front Axle Identification

Posted on January 30, 2015February 22, 2018 by Admin

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

1978-1992

J10, J20, Cherokee, Honcho, Grand Wagoneer

Jeep with Dana 44

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
1971-1997	A&D 100/150, B150/250, Dakota	Dodge with 8.25″ Ring Gear
1972-1997	Ram Pickup, A, D&W 100/150	Dodge with 9.25″ Ring Gear
1979-1993	B300, BD600, C300, D200-D700, W200, MB300, MD300, W200HD, Maxivan	Dodge with Dana 60
1979-1993	CB300, CB400, D300-D600, M300-M500, MB400, W300-W400, WM300 & P300	Dodge with Dana 70

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
1992.5-1997	Ranger	Ford with Dana 28IFS
1990-1992.5	Bronco II, Ranger, Explorer	Ford with Dana 35IFS
1992.5-1997	Ranger, Explorer	Ford with Dana 35IFS
1979	F-150 & F-250	Ford with Dana 44
1980-1996.5	Bronco, Bronco II, F-Series	Ford with Dana 44IFS
1979-1997	F-250 & F-350	Ford with Dana 50IFS
1978-1997	F-250 & F-350	Ford with Dana 60

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
1979-1991	K-30, CUCV, V-30	GM with Dana 60
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