ANCHOR SX-P48Z Rear Automatic Transmission Mount Cj 4.3L V6

( Brand: Anchor ), ( Manufacturer Part Number: SX-P48Z ), ( Type: Automatic Transmission Mount ), ( Placement On Vehicle: Transmission Transmission Hard Parts ), ( Manufacturer Warranty: 1 Year ), ( Item Length: 5.120 ), ( Item Height: 3.380 ), ( Item Width: 4.170 ), ( Ipn: C224 5-59 ), ( Compatible Year: 1991 1990 1989 1988 1987 1986 1985 ), ( 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 4.3l V6 Cj fits C2500 1985–1991

The **Anchor SX-P48Z Rear Automatic Transmission Mount** is a high-performance, heavy-duty suspension component meticulously engineered to enhance stability, durability, and drivability in 1985 through 1991 GMC C2500 models equipped with the legendary **4.3L V6 (CJ-series)** engine paired with an automatic transmission. Designed to replace the stock rear transmission mount, this upgraded part is crafted from premium, high-grade rubber and reinforced steel components, ensuring superior load-bearing capacity and resistance to wear, tear, and environmental degradation. The SX-P48Z is specifically tailored to accommodate the unique torque output and weight distribution of the CJ-series V6, providing a more resilient connection between the transmission and the frame while minimizing unwanted movement, rattles, and harsh vibrations that can compromise ride quality and long-term reliability. Whether you re hauling heavy payloads, towing substantial trailers, or simply seeking a smoother, more controlled driving experience, this mount delivers a robust solution that exceeds OEM standards. Its precise fitment ensures easy installation with minimal modifications, making it an ideal upgrade for both off-road enthusiasts and daily drivers who demand performance without sacrificing comfort. Built to withstand the rigors of demanding applications, the Anchor SX-P48Z is a testament to quality engineering, offering a durable, long-lasting upgrade that reinforces the structural integrity of your vehicle s drivetrain.

### Pros and Cons of buying a Anchor SX-P48Z Rear Automatic Transmission Mount for a 1985-1991 GMC C2500 (4.3L V6, CJ)

1. **Improved Transmission Protection** The SX-P48Z is designed to reduce transmission movement and vibration, which can help prevent damage to the transmission mounts and related components over time. This is particularly useful in older vehicles where stock mounts may be worn or failing.

2. **Enhanced Ride Comfort** By isolating the transmission from excessive movement, the mount can reduce harshness and rattles, especially when driving over rough roads or at higher speeds.

3. **Compatibility with Aftermarket Modifications** If you ve installed a performance exhaust, lift kit, or other modifications that alter the vehicle s suspension geometry, a reinforced transmission mount can help maintain proper alignment and reduce stress on the drivetrain.

4. **Durability** Anchor s SX series mounts are made from high-quality materials, including reinforced rubber and steel components, which are designed to last longer than stock mounts, especially in heavy-duty applications.

5. **Prevents Transmission Whipping** In older GM trucks with the 4.3L V6 and automatic transmissions (like the THM-200-4R), excessive movement can lead to fluid sloshing and potential transmission failure. The SX-P48Z helps minimize this issue.

6. **Easy Installation** The mount is designed to be a direct replacement for the stock part, requiring minimal tools and time to install. Most users report that it fits without modification.

7. **Cost-Effective Upgrade** Compared to full transmission rebuilds or replacements, upgrading to a reinforced mount is a relatively inexpensive way to extend the life of your transmission and prevent costly repairs.

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1. **Potential Overkill for Light Use** If your truck is primarily used for light-duty tasks (e.g., daily driving, short trips) and hasn t shown signs of transmission movement issues, upgrading to a heavy-duty mount may not be necessary. Stock mounts can last for years in such conditions.

2. **May Not Fix Underlying Issues** If your transmission is already damaged (e.g., fluid leaks, internal wear, or a failing torque converter), replacing just the mount won t resolve those problems. A transmission fluid flush or professional inspection may be needed first.

3. **Slightly Stiffer Ride Feel** Some drivers notice a marginally firmer ride due to the mount s reinforced construction, though this is usually minimal and outweighed by the benefits of reduced movement.

4. **Quality Variability (If Purchasing Used/Aftermarket)** While Anchor is a reputable brand, counterfeit or low-quality aftermarket mounts can sometimes be sold as genuine parts. Always purchase from a trusted dealer or verified seller to ensure authenticity.

5. **Limited Warranty (If Applicable)** Some aftermarket mounts come with limited warranties (e.g., 1-2 years), whereas stock parts may have longer coverage under certain circumstances. Check the warranty terms before purchasing.

6. **Installation Challenges in Tight Spaces** Depending on the condition of your truck s undercarriage, removing the old mount and installing the new one may require some maneuvering, especially if other components (like exhaust or frame rails) are in the way.

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### **Conclusion and Recommendation**

The **Anchor SX-P48Z rear automatic transmission mount** is a solid upgrade for a **1985-1991 GMC C2500 with a 4.3L V6 and automatic transmission**, particularly if you ve noticed:

- Excessive transmission movement or rattles.

- Signs of worn stock mounts (cracks, leaks, or sagging).

- Plans for modifications that could stress the drivetrain (e.g., lifts, exhaust work, or heavy loads).

**If your truck is running smoothly with no transmission-related issues**, the upgrade may not be urgent. However, if you re proactive about maintenance or plan to keep the vehicle long-term, the SX-P48Z is a **worthwhile investment** to prevent future problems.

- **Buy it if:** You ve observed transmission movement, plan to modify the truck, or want added peace of mind for heavy use.

- **Skip it if:** Your truck is in good condition with no signs of transmission wear, and you re on a tight budget.

- **Verify compatibility:** Ensure the mount matches your exact transmission type (THM-200-4R for your 4.3L V6) and purchase from a trusted source to avoid fakes.

- **Combine with other maintenance:** If upgrading, consider a **transmission fluid flush** and a **check for leaks or internal wear** to maximize longevity.

For most owners of older GM trucks, the **SX-P48Z is a smart, low-cost upgrade** that pays off in reliability and reduced repair risks.

Details:

Anchor Rear Automatic Transmission Mount for 1985 - 1991 GMC C2500 4.3L V6 cj: Status: In Stock.

part #: sxp48z prices

• $23.44-$26.94

specifications engimou:

• for models: C2500
• for makes: Gmc
• for years: 1985-1991
• brand: Anchor
• mpn: Sx-p48z
• type: Automatic Transmission Mount
• placement on vehicle: Transmission Transmission Hard Parts
• manufacturer warranty: 1 Year
• item length: 5.120
• item height: 3.380
• item width: 4.170
• ipn: C224 5-59
• compatible year: 1991 1990 1989 1988 1987 1986 1985
• core charge: Free No Core Charge
• position: Rear
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Anchor Automatic Transmission Mount

returns engimou:

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

payments engimou:

• credit card: Visa
• other
• wallet: Apple-pay

shipping engimou:

• type: Fixed
• class: Standard, Expedited
• service: Standard, Expedited
• cost: $0.00
• transit: 4-7 Days

general engimou:

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

offer engimou:

• started: April 5, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 3
• sold: 0

seller engimou:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 641457

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