fits model: Rr.

( Brand: Sherman Parts ), ( Manufacturer Part Number: SHE900-80R ), ( Part Type: Mount ), ( UPC: 013065037881 )
The **Sherman SE900-80R (900-80R) Rear Hydraulic Mount for General Motors Pickup Trucks (1988 1998)** is a high-performance, heavy-duty suspension component designed to enhance stability, reduce body roll, and improve overall handling for full-size GM trucks equipped with the iconic 900-series rear axle. Engineered for durability and precision, this rear hydraulic mount is specifically tailored to fit the **GM 900-80R axle housing**, making it an ideal upgrade for enthusiasts seeking to eliminate sag, minimize axle wind-up, and reinforce the suspension system under heavy loads or aggressive driving conditions. Crafted from high-grade, corrosion-resistant materials, the SE900-80R mount features a robust hydraulic damping mechanism that absorbs shocks and vibrations, ensuring a smoother ride while maintaining structural integrity. Its universal **RH (right-hand) mounting configuration** allows for easy installation on both stock and aftermarket setups, accommodating a wide range of applications from stock lift kits to full custom builds. Whether you're hauling heavy payloads, towing trailers, or pushing your truck to its limits on the track, this mount provides a reliable solution to prevent axle misalignment, reduce stress on the frame, and extend the lifespan of your suspension components. Built to withstand the demands of rugged use, the Sherman SE900-80R is a trusted choice for truck owners who demand performance without compromising on strength or longevity.
### Pros and Cons of Buying a Sherman SH900-80R (900-80R) with RH Mount (GM P/U, 1988 1998)
#### **Pros**
1. **Reliability and Durability** The Sherman SH900-80R is a well-built, heavy-duty truck designed for commercial and industrial use. Many models from this era (especially those from the late '80s to mid-'90s) were engineered for longevity, with robust frames, transmissions, and engines that can last with proper maintenance.
2. **Strong Engine Options** The GM P/U (Power Unit) setup typically includes a **6.5L V8 (Vinylite or Vortec)** or **7.4L V8 (Oldsmobile/Lumina)**, both of which are known for durability. The 6.5L engines, in particular, are often praised for their simplicity and ability to handle heavy loads with minimal issues if maintained.
3. **Proven Transmission Choices** The SH900-80R commonly came with a **4-speed automatic (THM400 or THM700R4)** or **5-speed manual (if equipped)**, both of which are reliable when properly serviced. The automatic transmissions, in particular, are known for lasting well with regular fluid changes.
4. **High Towing and Payload Capacity** With a **9,000 10,000 lb towing rating** and strong payload capacity, this truck is well-suited for heavy-duty work, including towing trailers, hauling equipment, or carrying large loads.
5. **Availability of Parts** Being a GM-based truck (originally a GMC Sierra or Chevrolet Silverado chassis), parts are widely available. The **RH mount (right-hand drive) version** is less common but still serviceable, with aftermarket support for many components.
6. **Modification Potential** The SH900-80R platform allows for various upgrades, including **lift kits, suspension modifications, and performance engine swaps** (e.g., LS engines). This makes it a good candidate for customization if you plan to use it for towing or off-roading.
7. **Resale Value (for Classic/Work Trucks)** While not a high-end collector s item, well-maintained SH900-80R trucks hold value among work truck enthusiasts, especially if they retain original components or have a clean history.
8. **Off-Road and Utility Capability** With the right tires, suspension, and bed setup, this truck can handle light off-roading, construction work, or agricultural tasks. The **RH mount** version may be preferable for certain applications where left-hand drive is impractical.
9. **Cost-Effective for Heavy Work** Compared to newer heavy-duty trucks, the SH900-80R offers **strong performance at a lower upfront cost**, making it a budget-friendly choice for those needing a reliable workhorse.
10. **Community and Support** There is a dedicated community of SH900-80R owners and enthusiasts who share knowledge on modifications, repairs, and restoration. Forums and social groups can be valuable resources.
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#### **Cons**
1. **Age and Wear** Trucks from the **1988 1998 era** are now **25 35 years old**, meaning they may require **significant maintenance or repairs**. Rust, worn-out suspension, and failing electrical systems are common issues.
2. **Fuel Efficiency** The **6.5L and 7.4L V8 engines** are not fuel-efficient by modern standards, averaging **10 15 MPG** in mixed driving. This can lead to higher operating costs, especially for long-distance work.
3. **Reliability Concerns with Neglect** Many SH900-80R trucks were used in **heavy-duty applications** (towing, construction, farming) and may have **exhausted their service life** if not properly maintained. Common failure points include:
- **Transmission (THM400/THM700R4)** Fluid leaks, slipping, or complete failure if not serviced.
- **Differential and Axles** Wear in the **ring and pinion gears** or **differential seals** is common.
- **Suspension** **Shock absorbers, bushings, and control arms** often need replacement.
- **Brakes** **Drum brakes (if equipped)** or **disc brakes (if upgraded)** may require frequent servicing.
- **Electrical Issues** Older wiring harnesses and components can fail, leading to **starting problems or dashboard malfunctions**.
4. **High Maintenance Costs** Replacing worn-out parts (e.g., **transmission, differential, suspension**) can be **expensive**, especially if original components are no longer available. Aftermarket parts may not always fit perfectly.
5. **Emissions and Modern Compliance** Some SH900-80R trucks may not meet **modern emissions standards**, particularly if they have **older carbureted engines or poorly maintained exhaust systems**. This could be an issue if used in **urban areas with strict regulations**.
6. **Limited Modern Tech** Unlike newer trucks, the SH900-80R lacks **advanced safety features (ABC, stability control), modern infotainment, or fuel-efficient diesel options**. This can be a drawback for daily driving or compliance with newer regulations.
7. **RH Mount Limitations** While the **right-hand drive (RH mount)** version is useful for certain applications (e.g., driving on the right side of the road in some countries), it can be **less practical in the U.S. or left-hand drive markets**. Finding mechanics familiar with RH drive trucks may be harder.
8. **Potential for Hidden Damage** Used trucks of this age often have **hidden rust, frame damage, or structural weaknesses** that may not be immediately obvious. A **thorough inspection** is crucial before purchase.
9. **Resale Depreciation** While not a luxury vehicle, the SH900-80R will **depreciate over time**, especially if it s not well-maintained. If you plan to sell it later, the value may not recover as well as a newer truck.
10. **Driver Comfort** The **rigid ride quality** and **limited modern ergonomics** (e.g., older seats, less sound insulation) may make long drives less comfortable compared to newer trucks.
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### **Ending Conclusion**
The **Sherman SH900-80R (900-80R) with RH Mount (GM P/U, 1988 1998)** is a **strong, capable work truck** that excels in **heavy-duty towing, hauling, and industrial use**. Its **durable engine, transmission, and chassis** make it a **reliable choice for those who prioritize raw power and utility over modern conveniences**. However, its **age, maintenance requirements, and lack of fuel efficiency** mean it is **not ideal for daily commuting or long-term use without significant investment in repairs and upgrades**.
If you are **looking for a budget-friendly, high-towing work truck** and are **willing to commit time and money to maintenance**, this truck can be an **excellent value**. On the other hand, if you need **modern reliability, fuel efficiency, or safety features**, a **newer heavy-duty truck (e.g., Ford F-250 Super Duty, Chevrolet Silverado HD, or Ram 2500)** would be a better long-term investment.
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### **Recommendation**
**Buy the Sherman SH900-80R if:**You need a **heavy-duty towing/hauling truck** for **construction, farming, or industrial work**.
You are **prepared for regular maintenance** (transmission fluid changes, suspension checks, brake service).
You **enjoy working on or modifying classic trucks** and don t mind some wear and tear.
You find a **well-documented, low-mileage example** with **clean service records**.
You **don t mind lower fuel economy** and are okay with older tech.
**Avoid the Sherman SH900-80R if:**You need a **daily driver** with modern comforts and safety features.
You **cannot afford or don t want to spend money on repairs**.
You **prioritize fuel efficiency** (diesel or modern V8s may be better).
You **don t have access to mechanics familiar with older GM trucks**.
You **plan to keep the truck long-term** without significant upgrades.
#### **Final Verdict:**The SH900-80R is a **great choice for enthusiasts and those needing a no-nonsense work truck**, but it requires **proper care and budgeting for maintenance**. If you re willing to put in the work, it can be an **incredibly capable and rewarding** purchase. However, if you want **modern reliability and lower long-term costs**, a newer heavy-duty truck may be the smarter option.
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