Ford LTD Universal Joint Replacement Guide (1965-1978)
Diagnose and fix the clunks, squeaks, and vibrations from your Ford LTD's driveline.
- A clunking noise when shifting into gear is the most common sign of a bad U-joint on your LTD.
- Ignoring a failing U-joint is dangerous; a complete failure can cause the driveshaft to detach.
- For a durable, long-lasting repair, choose a premium non-greasable U-joint from a brand like Dana Spicer.
- It is best practice to replace both the front and rear U-joints at the same time to ensure a balanced driveline.
Is Your Ford LTD's U-Joint Failing?
A failing universal joint in your 1965-1978 Ford LTD will give you clear warning signs. Ignoring them can be dangerous, as a complete failure can cause the driveshaft to detach from the car. Listen and feel for these common symptoms:
- Clunking Noise: The most common sign is a distinct "clunk" or "clank" sound when you shift from Park into Drive or Reverse. You might also hear it when you accelerate or decelerate.
- Vibration: You may feel a vibration in the floor or through the seat, especially at highway speeds. This happens because the worn joint can no longer spin smoothly, creating an imbalance in the driveshaft.
- Squeaking Sound: A rhythmic squeaking or chirping noise that gets faster as you speed up often points to a dry or worn-out U-joint that lacks lubrication.
Safety First
Driving with a bad U-joint is not recommended. A complete failure can cause the driveshaft to separate from the vehicle, leading to a loss of control or significant damage to the undercarriage. If you suspect a U-joint has failed, you should have the vehicle inspected immediately.
Choosing the Right Aftermarket U-Joint
For a classic vehicle like the 1965-1978 Ford LTD, new original equipment (OEM) parts are generally not available. The aftermarket offers a range of quality replacements, many of which are superior to the original 1970s parts in terms of strength and durability. Here’s how to choose:
Brand Tiers
Not all brands are created equal. Based on owner experiences and mechanic recommendations, aftermarket U-joints for your LTD can be grouped into tiers:
- Premium (OEM Quality or Better): Dana Spicer is widely considered the top choice for universal joints. They are known for being original equipment suppliers to many manufacturers and their parts are praised for strength and reliability. Many classic car owners and shops will use nothing else.
- Quality Aftermarket: Brands like Moog, SKF, and GMB fall into this category. They are well-known and provide reliable service for daily drivers. While Moog has a strong reputation, some users in online forums have noted a recent decline in consistency. However, they remain a popular choice.
- Performance: Yukon Gear is a brand known for high-strength components, often used in racing or off-road applications. While likely stronger than necessary for a stock LTD, they are a high-quality option.
Greasable vs. Non-Greasable (Sealed)
You will see two main types of U-joints for sale: those with a grease fitting (zerk) and those that are sealed for life.
- Greasable U-Joints: These have a small fitting that allows you to add fresh grease periodically. This can help flush out contaminants and extend the part's life, but only if you perform the maintenance. The hole for the grease fitting can also be a structural weak point.
- Non-Greasable U-Joints: These are sealed from the factory and require no maintenance. High-quality sealed joints, like the Spicer "Life Series," are often considered stronger than greasable versions because the cross is solid metal. For a classic car that sees normal street use, a quality non-greasable joint is often the preferred, hassle-free choice.
Pro Tip: Replace in Pairs
Your LTD's driveshaft has at least two U-joints (front and rear). If one has failed due to age and mileage, the other is likely not far behind. It is highly recommended to replace both U-joints at the same time to ensure a smooth, balanced driveline and to avoid doing the same job twice.
Cost of Replacing a Ford LTD Universal Joint
| Item | Estimated Cost |
|---|---|
| Aftermarket Universal Joint (Single) | $18.90 - $107.89 |
| Shop Labor | $150 - $300 |
| Total Estimated Cost (Professional) | $170 - $410 (for one joint) |
Costs are estimates and can vary based on your location, the specific brand of part chosen, and the condition of your vehicle.
Frequently Asked Questions (FAQ)
How many U-joints does my 1965-1978 Ford LTD have?
Most 1965-1978 Ford LTD models with a one-piece driveshaft have two U-joints: one at the transmission end and one at the rear axle. Some station wagon or heavy-duty models may have a two-piece driveshaft with three U-joints and a center support bearing. Always inspect your vehicle to confirm its configuration before ordering parts.
Can I replace a U-joint myself?
Yes, this is a common DIY job for those with mechanical experience. It requires basic hand tools, jack stands, and a way to press the old joint out and the new one in. Many people use a bench vise and a set of sockets. However, it can be a difficult job if the parts are rusted together, and improper installation can damage the new joint's needle bearings.
Do I need any special tools to replace a U-joint?
While a hydraulic press is the professional tool, you can do the job without one. The most common DIY method uses a sturdy bench vise, a hammer, and two sockets: one large enough for the U-joint cap to fit inside, and one small enough to press on the cap. You will also need snap ring pliers for external snap rings.
Is there a recall on the universal joints for my Ford LTD?
No, there are no active or past recalls or specific Technical Service Bulletins (TSBs) from Ford regarding widespread universal joint failures on the 1965-1978 Ford LTD. Any failure today is due to the age and wear of the original components.
Technical Specifications
The 1965-1978 Ford LTD used several different U-joint sizes depending on the year, engine, transmission, and model (sedan vs. wagon). It is essential to measure your existing U-joint's bearing cap diameter and overall width or use your vehicle's specific details to find the exact part number. Always verify fitment before purchasing.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.