ANCHOR SX-09MJ Rear Automatic Transmission Mount Xo P3500 5.7L V8

( Brand: Anchor ), ( Manufacturer Part Number: SX-09MJ ), ( Type: Automatic Transmission Mount ), ( Placement On Vehicle: Transmission Transmission Hard Parts ), ( Manufacturer Warranty: 1 Year ), ( Item Length: 5.120 ), ( Item Width: 4.170 ), ( Item Height: 3.380 ), ( Ipn: C582 16-50 ), ( Compatible Model: P3500 ), ( Compatible Year: 1999 1998 1997 1996 1995 1994 1993 1992 1991 ), ( Core Charge: Free No Core Charge ), ( Position: Rear ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Anchor Automatic Transmission Mount )

Review ANCHOR Rear Automatic Transmission Mount Gmc 5.7l V8 Xo fits 1991–1999

The **Anchor SX-09MJ Rear Automatic Transmission Mount** is a high-performance, heavy-duty replacement part designed specifically for the 1991 through 1999 GMC P3500 models equipped with the legendary **5.7L V8 engine** and the **4L60-E or 4L65-E automatic transmission**. This mount is engineered to provide superior strength, durability, and reliability, ensuring a seamless connection between the transmission and the frame while absorbing vibrations and reducing stress on the drivetrain components. Crafted from premium-grade materials, including reinforced rubber and high-tensile steel components, the SX-09MJ is built to withstand the demands of heavy-duty towing, off-roading, and daily driving with confidence. Its robust construction helps prevent transmission whipping, frame flex, and premature wear on the transmission housing or mounts, which are common issues in older GM full-size trucks. Whether you're hauling heavy loads, towing trailers, or simply seeking a more stable and quiet ride, this mount delivers exceptional performance and longevity. The SX-09MJ is a direct-fit replacement, ensuring an easy installation with no modifications required, making it an ideal upgrade for those looking to eliminate rattles, improve drivetrain alignment, and enhance overall vehicle stability. Trusted by mechanics and enthusiasts alike, this mount is a proven solution for maintaining the integrity of your GMC P3500 s drivetrain while extending its lifespan.

### Pros and Cons of buying a Anchor SX-09MJ Rear Automatic Transmission Mount for a 1991-1999 GMC P3500 (5.7L V8, XO)

1. **Improved Transmission Mount Durability** The stock transmission mount on older GMC trucks, especially those with the 5.7L V8 and automatic transmission, can wear out over time due to constant vibration and stress. The Anchor SX-09MJ is designed to be more robust, reducing the risk of premature failure.

2. **Reduced Vibration and Noise** A failing or worn-out transmission mount can cause excessive vibration, rattling, and even a clunking noise, particularly when shifting or accelerating. The Anchor mount is engineered to dampen vibrations better than the OEM part, leading to a smoother ride and quieter cabin.

3. **Prevents Transmission Shifting Issues** If the transmission mount is damaged, it can affect the alignment of the transmission, leading to rough shifting or even transmission slippage. A high-quality replacement like the Anchor SX-09MJ helps maintain proper transmission positioning, improving overall drivetrain performance.

4. **Long-Term Cost Savings** While the upfront cost of a quality aftermarket mount is higher than an OEM replacement, it often lasts longer and reduces the likelihood of needing additional repairs down the road. This can save money compared to frequent replacements or transmission-related problems.

5. **Better Fit and Compatibility** Anchor is known for producing parts that are designed to fit modern vehicles better than many OEM replacements. The SX-09MJ is specifically engineered for the 1991-1999 GMC P3500, ensuring a proper fit without modifications.

6. **Easier Installation** Many aftermarket mounts come with clear instructions and are designed to be installed without extensive modifications. The Anchor SX-09MJ is straightforward to replace, reducing labor time compared to some OEM parts that may require additional adjustments.

7. **Compatibility with Performance Upgrades** If you plan to modify your truck with a performance exhaust, lift kit, or other upgrades that alter suspension geometry, a sturdy transmission mount like the Anchor SX-09MJ can help maintain drivetrain stability.

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1. **Higher Upfront Cost** Compared to an OEM replacement or a generic aftermarket mount, the Anchor SX-09MJ is more expensive. If your budget is tight, this could be a drawback, especially if the stock mount is still functional but showing early signs of wear.

2. **Potential Overkill for Mild Wear** If the original transmission mount is only slightly worn or showing minor cracks, replacing it with a premium mount like the Anchor SX-09MJ may not be immediately necessary. In such cases, monitoring the mount s condition and replacing it only when needed could be a more cost-effective approach.

3. **Installation Requires Basic Mechanical Knowledge** While the installation is generally straightforward, it does require lifting the vehicle and accessing the transmission. If you re not comfortable with basic automotive repairs, you may need to pay for professional installation, adding to the cost.

4. **Limited Availability of OEM Parts** If you ever decide to return to OEM parts in the future, finding an exact OEM replacement for the transmission mount may be difficult, especially for older GMC models. However, this is less of an issue if you re committed to aftermarket solutions.

5. **Quality Variability in Aftermarket Parts** While Anchor is a reputable brand, there is always a risk of receiving a counterfeit or lower-quality part if purchasing from an untrusted seller. Buying from a well-known dealer or directly from Anchor s website minimizes this risk but adds to the cost.

6. **Potential for Over-Tightening During Installation** If not installed correctly, even a high-quality mount can be damaged by over-tightening the bolts. This requires careful attention during installation to avoid stripping threads or damaging the mount.

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The Anchor SX-09MJ rear automatic transmission mount is a superior choice for owners of a 1991-1999 GMC P3500 with a 5.7L V8 and automatic transmission, particularly if the stock mount is worn, cracked, or causing vibration issues. Its durability, vibration-dampening properties, and compatibility make it a reliable long-term solution. However, the higher cost and the need for proper installation may deter some buyers, especially if the original mount is still in decent condition.

For most owners experiencing transmission mount failure or planning to keep their truck in good running condition, the Anchor SX-09MJ is a worthwhile investment. If the stock mount is still functional but showing early signs of wear, it may be prudent to monitor it and replace it only when necessary to save on upfront costs.

- Your current transmission mount is cracked, broken, or causing excessive vibration.

- You want a long-lasting, high-quality replacement that reduces drivetrain stress.

- You plan to keep your truck for an extended period and want to avoid future transmission-related issues.

- You re comfortable with basic installation or have access to a mechanic for help.

- The stock mount is still in good condition and only showing minor wear.

- You re on a tight budget and can monitor the mount for further deterioration.

- You re unsure about installing it yourself and don t want to pay for professional labor without immediate need.

For most cases where the transmission mount is failing or has failed, the Anchor SX-09MJ is the best available option for reliability and performance.

Details:

Anchor Rear Automatic Transmission Mount for 1991 - 1999 GMC P3500 5.7L V8 xo: Status: In Stock.

part #: sx09mj prices

• $20.49-$23.10

specifications engimou:

• for makes: Gmc
• for years: 1991-1999
• brand: Anchor
• mpn: Sx-09mj
• type: Automatic Transmission Mount
• placement on vehicle: Transmission Transmission Hard Parts
• manufacturer warranty: 1 Year
• item length: 5.120
• item width: 4.170
• item height: 3.380
• ipn: C582 16-50
• compatible model: P3500
• compatible year: 1999 1998 1997 1996 1995 1994 1993 1992 1991
• core charge: Free No Core Charge
• position: Rear
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Anchor Automatic Transmission Mount

general engimou:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts

shipping engimou:

• class: Standard, Expedited
• type: Fixed
• cost: $0.00
• transit: 3-7 Days
• service: Standard, Expedited

seller engimou:

• # reviews: 655812
• city: Indianapolis, Indiana
• rating: 99.6%

returns engimou:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

payments engimou:

• wallet: Paypal
• other
• credit card: Visa

offer engimou:

• options: Ship-to-home
• started: May 11, 2026
• sold: 0
• quantity: 1
• availability: In Stock

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