The Porsche 944 Turbo is a classic sports car known for its balanced handling and turbocharged power. One critical component that often requires attention is the constant velocity (CV) joint. These joints connect the transaxle to the rear wheels, allowing power transfer while accommodating suspension movement. Over time, CV joints can wear out, leading to clicking noises, vibration, or even failure. For owners looking to replace them, Pelican Parts is a trusted supplier offering a range of options. This guide covers everything you need to know about 944 Turbo CV joints—from identifying problems to selecting the right parts and performing the job.
Understanding CV Joints in the Porsche 944 Turbo
CV joints are designed to handle the angular movements of the suspension while transmitting torque. In the 944 Turbo, the rear half-shafts each have an inner and outer CV joint. The inner joint connects to the transaxle, while the outer joint attaches to the wheel hub. Because the 944 uses a rear transaxle layout, the half-shafts are relatively short but work hard under acceleration and cornering.
Common Failure Modes
Most CV joint wear is caused by grease loss or contamination from torn boots. Once dirt and moisture enter the joint, the hardened steel bearings and races wear rapidly. Symptoms include:
- Clicking or popping sounds when turning, especially at low speeds.
- Vibration during acceleration that disappears when coasting.
- Grease on the inside of the wheel or suspension from a torn boot.
- Excessive play in the half-shaft when checked manually.
If ignored, a failed CV joint can lock up or break, causing a loss of drive. Replacing worn joints promptly is essential for safety and performance.
Identifying the Problem
Before ordering parts, confirm that the issue is indeed the CV joint. Jack up the rear of the car safely, support it on stands, and turn the steering full lock while rotating the wheel. Listen for clicking from the outer joint. Inner joints can be checked by looking for play when prying the half-shaft near the transaxle flange. Also inspect the rubber boots for cracks, splits, or missing clamps.
Choosing the Right CV Joints for Your 944 Turbo
When replacing CV joints, you have several choices. The key is to match the quality and specifications to your driving needs. Pelican Parts offers both OEM and high-quality aftermarket options.
OEM vs. Aftermarket
OEM (Original Equipment Manufacturer) joints are made by the same suppliers that provided parts to Porsche. They are identical to the factory parts, ensuring perfect fit and durability. These are ideal for a daily driver or a concours restoration.
Aftermarket joints can be a cost-effective alternative. Brands like GKN, SKF, or Lemförder are well-respected and often meet or exceed OEM specs. However, cheaper no-name joints may use inferior steel or poor boot material, leading to premature failure. Stick to reputable brands sold by established retailers like Pelican Parts.
What to Look For
- Bolt-on vs. threaded: Original joints use a bolt-on flange to the hub, while some aftermarket solutions use a threaded design. Ensure compatibility with your year 944 Turbo.
- Boot material: Neoprene or polyurethane boots last longer than rubber, but rubber is proven for road use.
- Grease: Proper CV joint grease (molybdenum disulfide) should be included or purchased separately.
- Packaging: A complete assembly often comes with the joint, grease, boot, clamps, and circlips. This simplifies the job.
Pelican Parts clearly lists which vehicles each joint fits, saving guesswork. They also provide technical articles to help you choose.
Why Pelican Parts is a Reliable Source
Pelican Parts has served Porsche enthusiasts for decades. Their website is known for accurate part diagrams, detailed application notes, and a knowledgeable support team. They stock both OEM and aftermarket CV joints specifically for the 944 Turbo, frequently updating their inventory based on demand.
Product Range and Expertise
Their catalog includes:
- Complete half-shaft assemblies (remanufactured or new)
- Individual CV joints (inner and outer)
- Boot kits with screws, circlips, and grease
- OEM bolts and nuts for proper installation
Pelican Parts also provides Pelican Technical Articles with installation guides for the 944. These are written by experienced technicians and cover torque specs, tool requirements, and common pitfalls.
Tips for Ordering
- Verify your part number using the OEM Porsche parts diagram. Pelican Parts’ online system cross-references many numbers.
- Check the condition of your half-shafts. If the shaft itself is pitted or bent, a whole remanufactured assembly might be more cost-effective than just joints.
- Order necessary hardware like new circlips, bolts, and locking tabs. These are often one-time-use and should not be reused.
If you call their support, you will speak to someone who knows the 944 platform, not a generic call center.
Step-by-Step CV Joint Replacement Overview
Replacing a CV joint is a moderate DIY job if you have basic mechanical skills. Here is an outline of the process; consult the Pelican Parts article for exact details.
Tools Needed
- Floor jack and jack stands
- Socket set (including 12-point sockets for half-shaft bolts)
- Torque wrench
- Breaker bar
- Brass drift or punch
- CV joint press or heavy-duty vise
- Snap ring pliers
- Safety glasses and gloves
Safety Precautions
- Support the car properly; never rely on a jack alone.
- Work on level ground.
- Disconnect the battery if working near electrical connections.
- Use penetrating oil on stubborn bolts beforehand.
Basic Steps
- Remove the half-shaft. Unbolt the inner flange from the transaxle and the outer flange from the hub. Slide the half-shaft out.
- Disassemble the old joint. If replacing just the joint, you must press or knock the old joint off the shaft. Mark the orientation of the shaft to the joint.
- Clean and inspect the shaft. Remove rust and burrs. Check the splines and the shaft surface for wear.
- Install the new joint. Pack the new joint with fresh grease, then press it onto the shaft. Install the new boot and clamps.
- Reinstall the half-shaft. Bolt it back into place using new hardware. Torque to factory specs.
- Test drive. After lowering, drive slowly in a tight circle to ensure no clicking.
A common mistake is overfilling the boot with grease, which causes it to burst. Follow the recommended amount.
Final Recommendation
For a Porsche 944 Turbo, CV joints should not be an afterthought. Using quality parts from Pelican Parts ensures reliability and longevity. If you drive your car hard on track, consider OEM joints for maximum durability. For a street car, a premium aftermarket joint from a brand like GKN is a solid choice. Always replace the boot and grease, and inspect the half-shaft itself before reassembly. Pelican Parts’ technical articles and customer support make them a go-to source whether you are a first-time DIYer or a seasoned mechanic. Take your time, use the correct tools, and you will keep your 944 Turbo driving smoothly for years to come.