Dodge D350 Universal Joint Replacement Guide (1981-1988)
Keep your classic one-ton running smoothly by addressing driveshaft vibrations and clunks.
- Your D350 may have a two-piece driveshaft with multiple U-joints and a carrier bearing; inspect to confirm your configuration.
- Symptoms of failure include squeaking, clunking when shifting, and vibrations at speed.
- Dana/Spicer is widely considered the best quality replacement brand for durability and fit.
- Replacing all U-joints at the same time is recommended, as they typically wear at a similar rate.
Signs of a Failing Universal Joint
A bad U-joint gives you a few warning signs before it fails completely. Ignoring them can lead to more damage. The most common cause of failure is simply lack of lubrication and normal wear over decades of use.
Common Failure Symptoms
- Squeaking Noise: A high-pitched, chirping sound that is most noticeable at low speeds (under 10 mph) and may go away as you speed up.
- Clunking Sound: A distinct "clunk" or ringing noise when you shift from Drive to Reverse or vice-versa. This is the sound of slack in the driveline.
- Vibration: A vibration that you can feel through the floor or seats of the truck. It starts at a certain speed and gets worse as you go faster. This can also be caused by a worn carrier bearing on trucks with a two-piece driveshaft.
- Banging or Loud Noise: In severe cases, a failing U-joint can cause a loud banging sound from under the truck as it comes apart.
Choosing the Right Aftermarket U-Joint
For a truck as old as the 1981-1988 D350, new original equipment (OEM) parts are generally not available. The aftermarket is your primary source. Quality varies, so it's important to choose a brand known for durability. Aftermarket U-joints are often categorized as either greaseable or non-greaseable (sealed). Greaseable joints have a fitting that allows you to add new grease, which can flush out contaminants and extend the part's life if done regularly. Non-greaseable joints are often considered stronger because the cross body isn't drilled for a grease channel.
Brand Quality Tiers
Based on owner experiences and mechanic recommendations, aftermarket U-joints for these trucks can be grouped into tiers:
Tier 1: OEM Quality or Better
- Dana / Spicer: Widely considered the original manufacturer and the gold standard. They are known for strength, durability, and perfect fit. If you want to install a part and not worry about it, Spicer is the top choice.
- SKF: A well-respected brand that many users trust. It is often seen as a high-quality alternative to Spicer and a more reliable choice than some of Moog's more recent offerings.
Tier 2: Reputable Aftermarket
- Moog: Historically a top-tier "problem solver" brand, but recent reviews are mixed. Some users have experienced a decline in quality and premature failures, while others still trust the brand. They offer a wide range of parts for the D350 and can be a good option, but inspect the part carefully upon arrival.
- Yukon Gear & Axle: A brand focused on high-performance and off-road applications. Their U-joints are built for extreme strength and are likely overkill for a stock D350 unless it's used for heavy hauling or has significant power upgrades. Their "Superjoints" are a specialized part that requires more maintenance.
Tier 3: Budget-Focused
- GMB: A budget-friendly option that aims to meet OEM standards. Reviews are inconsistent; some find them to be a great value, while others report poor quality and early failure. They can be a viable option if cost is the main concern, but may not have the longevity of higher-tier brands.
- Crown Automotive: Primarily a Jeep parts supplier, but they offer parts for Dodge trucks. Generally considered a step above generic store brands but not on the same level as Spicer or SKF. Quality can be hit-or-miss according to some forum discussions.
| Part Type | Estimated Cost (per joint) | Notes |
|---|---|---|
| New Aftermarket | $17.14 - $107.89 | Price varies widely by brand. Budget brands are on the low end, while high-performance Yukon or Spicer joints are on the high end. |
| Shop Labor | $120 - $250 | Estimated cost for a professional mechanic to replace one or two joints. Price increases if the driveshaft is a two-piece unit with a carrier bearing. |
Pro Tip: Check All Your Joints
Your D350 could have a one-piece or two-piece driveshaft. A two-piece shaft will have a center support bearing (also called a carrier bearing) and at least three U-joints. If one joint has failed, the others are likely the same age and condition. It's wise to inspect all of them and replace them as a set to avoid doing the same job twice.
Frequently Asked Questions (FAQ)
How many U-joints does my 1981-1988 Dodge D350 have?
It depends on your truck's configuration (wheelbase, 2WD vs 4WD). Most long-bed 2WD models use a two-piece driveshaft, which typically has three U-joints and one carrier bearing. Shorter models may have a one-piece shaft with only two U-joints. The only way to be certain is to inspect your truck.
Can I replace a U-joint myself?
Yes, this is a common DIY job for those with mechanical experience. You will need tools like a good socket set, snap ring pliers, and either a bench vise with large sockets or a dedicated ball joint/U-joint press. It's important to mark the driveshaft's orientation before you remove it to ensure it goes back in balanced.
Should I choose greaseable or non-greaseable U-joints?
This is a matter of debate. Non-greaseable (sealed) joints, like those from Spicer, are often considered stronger because the main body isn't drilled out for a grease fitting. Greaseable joints can last longer if—and only if—you service them regularly. For most owners who prefer a "fit-it-and-forget-it" approach, a high-quality non-greaseable joint is the best choice.
Were there any recalls for the D350 U-joint?
No specific recalls or technical service bulletins (TSBs) were found for universal joints on the 1981-1988 Dodge D350 during research on the NHTSA database and other forums.
Helpful Videos
Technical Specifications
Dodge D350 trucks from this era may use several different U-joint sizes depending on the specific driveshaft and axle combination (e.g., Dana 60, Dana 70). It is critical to measure your existing U-joints (cap diameter and overall width) or use a part number lookup specific to your truck's configuration before ordering.
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.
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