New or Remanufactured to OEM spec's

We stock over 5,000 individual parts, components, new and remanufactured driveshafts!

Need information on how to remove your front axle shaft, order "CV Driveaxle removal & installation technical manual" part number M120 ($9.00 plus $1.00 postage). If you order your parts from us and we will fax to you at no cost All-Data detailed repair information if require, this information can provide exploded views of your specific repair and vehicle application it also includes bills of materials. This information can make your repair job much easier!

CV JOINT TROUBLESHOOTING

When troubleshooting CV problems, there are three steps to the inspection, we provide a detailed explanation for each in the following paragraphs:

• Road Test
• Visual Inspection
• Testing in a Shop

ROAD TEST:

Check vehicle under all situations that may indicate a failure of CV components: acceleration, deceleration, coasting, soft and hard turns, figure 8's, constant speeds, and driving straight ahead. Listen for any of the following indicators:

Clicking or clunking noise when coasting, or at constent speed	may indicate outer CV wear may indicate suspension/steering wear
Clicking noise on turns	may indicate outer CV wear may indicate worn/damaged wheel bearings
Clunking noise in accel/deceleration, or on turns	may indicate outer CV wear may indicate inner CV wear may indicate transaxle gear damage may indicate suspension/steering wear
Shudder or vibration at constant low speeds	may indicate loose/damaged suspension parts may indicate worn inner CV component may indicate improperly torqued axle nut may indicate out of balance tire
Shudder or shimmy during acceleration	may indicate worn/sticking inner CV joint may indicate incorrect ride height may indicate worn/loose suspension parts
Shudder or vibration at constant highway speeds	may indicate worn/loose suspension parts may indicate worn inner CV joint may indicate improperly torqued axle nut may indicate out of balance tire

VISUAL INSPECTION:

Carefully check all the components for possible wear.

Check CV boots for any seepage, cracks, or tears. Any loose of lubrication will result in irreparable damage, leading to the replacement of the driveaxle.

Check CV boots for type of material. Older rubber or neoprene boots allow contaminants inside even if there is not noticeable damage. Check for any type of dry-rot or stress-damage. Hard-plastic boots allow contamination without noticeable damage, due to their nature of being hard to seal. These types of boots should be replaced with a new boot kit, and components inspected for damage. Any wear or contamination will indicate the need for the replacement of the axle with a re-manufactured driveaxle.

Inspect the CV shaft for damage or wear. Shafts equipped with torsional dampeners often are loose under load, causing a vibration, and should be replaced with a solid shaft, as found with our re-manufactured shafts.

Check all suspension pieces for wear. Often worn suspension and steering items are misdiagnosed as CV problems.

TESTING IN A SHOP:

Insure that the suspension is fully supported when being operated in the shop for diagnosis. Do not allow the driveaxles to be overextended by the full drop of the suspension components. Place a support under the steering arms to allow the drivetrain to assume a "normal" operating angle.

Notice that symptoms may not occur in the shop, due to no torque load on the driveaxles.

WEATHER CRACKED OR TORN BOOTS:

Most noticeable on older rubber or neoprene boots, any kind of dry-rot or weather-checking or tearing can cause serious problems. These boots serve as a seal to keep the lubricant in and the contaminants out of the joint. Any sign of aging will result in contaminants entering the joint.

Suction is caused in the inner boot any time the vehicle hits a bump, or hill, as the inner joints "plunge" to facilitate road contour. The outer boot experiences expansion every time the vehicle turns, due to heat build-up then suction as the unit cools.

These natural actions will cause dirt and moisture to enter the boot through the weak spots. Once contaminated, the lubricant will break down. If the grease breaks down enough, the metal parts will actually start to rub, causing irreparable damage, leading to the replacement of the drive shaft.

The real benefit to you is to avoid more costly repairs later, avoid being stranded on the road, unable to move, when the boot failure had the final result of catastrophic joint failure.

Most Orders Shipped the same day!! Most credit cards accepted.

If it's a part and or a components under your vehicle we can supply it!

To order you can complete our easy to use secure electronic order form,

Or you can call the order desk at 1-800-216-1632, talk to a knowledgeable technician.

Considering purchasing differential parts from drivetrain.com and have questions contact Tech line at 1-702-876-3100 or send e-mail to ujoints@drivetrain.com

Drivetrain Specialists of Las Vegas - Las Vegas NV, 89102