GMC Safari 1985-1994 Suspension Specifications
Explore detailed suspension specifications for the 1985-1994 GMC Safari, including front and rear systems, shock absorbers, springs, and alignment settings. Ideal for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the suspension system of the 1985-1994 GMC Safari. It is designed to assist mechanics, enthusiasts, and owners in understanding the suspension components, their functions, and maintenance requirements. Use the search and navigation instructions to quickly find relevant information. The document is divided into sections covering front and rear suspension, steering, and key specifications for quick reference.
How to Use
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Key Specifications
Front Suspension Type
Independent, coil springs
Rear Suspension Type
Leaf springs
Shock Absorber Type
Hydraulic twin-tube (front), Gas-charged (rear)
Steering Type
Power-assisted rack and pinion
Wheelbase
111 inches
Available Specifications
Front Suspension
The front suspension system of the 1985-1994 GMC Safari is designed for durability and comfort. It features independent suspension with coil springs and shock absorbers, ensuring smooth handling and stability. This section covers key components, their functions, and maintenance tips.
Front Suspension
The front suspension system of the 1985-1994 GMC Safari is designed for durability and comfort. It features independent suspension with coil springs and shock absorbers, ensuring smooth handling and stability. This section covers key components, their functions, and maintenance tips.
Coil Springs
- Diameter: 12.5 mm
- Material: High-strength steel
- Load capacity: 1,200 lbs per spring
- Replacement interval: 100,000 miles or as needed
Shock Absorbers
- Type: Hydraulic twin-tube
- Travel length: 6 inches
- Damping force: Adjustable
- Replacement interval: 50,000 miles
Control Arms
- Material: Forged steel
- Bushings: Rubber with steel sleeves
- Replacement interval: Inspect every 30,000 miles
- Torque specs: 85 ft-lbs
Rear Suspension
The rear suspension system of the GMC Safari utilizes a leaf spring setup, providing excellent load-bearing capacity and stability. This section details the components, their specifications, and maintenance guidelines.
Rear Suspension
The rear suspension system of the GMC Safari utilizes a leaf spring setup, providing excellent load-bearing capacity and stability. This section details the components, their specifications, and maintenance guidelines.
Leaf Springs
- Number of leaves: 5
- Material: High-carbon steel
- Load capacity: 2,500 lbs
- Replacement interval: 150,000 miles
Shock Absorbers
- Type: Gas-charged
- Travel length: 7 inches
- Damping force: Fixed
- Replacement interval: 60,000 miles
Steering System
The steering system complements the suspension by ensuring precise control and responsiveness. This section covers the steering linkage, power steering pump, and alignment specifications.
Steering System
The steering system complements the suspension by ensuring precise control and responsiveness. This section covers the steering linkage, power steering pump, and alignment specifications.
Steering Linkage
- Material: Steel with ball joints
- Length: 24 inches
- Replacement interval: Inspect every 25,000 miles
- Torque specs: 45 ft-lbs
Power Steering Pump
- Type: Vane pump
- Pressure: 1,200 psi
- Fluid capacity: 1.5 quarts
- Replacement interval: 100,000 miles
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Component Specifications
Overview
- Type
- Independent front suspension, solid rear axle
- Configuration
- Front coil springs, rear leaf springs
- Platform
- GM G-body van platform
- Material
- Steel construction
- Location
- Front and rear axles
Dimensions
- Front Track Width
- 65.5 inches (1664 mm)
- Rear Track Width
- 65.5 inches (1664 mm)
- Front Spring Length
- 18.7 inches (475 mm)
- Rear Leaf Spring Length
- 52 inches (1321 mm)
- Shock ABSorber Length
- 22 inches (559 mm)
- Ground Clearance
- 7.5 inches (190 mm)
- Wheelbase
- 111 inches (2819 mm)
Materials
- Springs
- High-tensile steel
- Shock ABSorbers
- Steel casing with hydraulic fluid
- Control Arms
- Forged steel
- Bushings
- Rubber and polyurethane
- Stabilizer Bar
- Chrome-molybdenum steel
Features
- Ride Quality
-
- Progressive-rate coil springs
- Hydraulic shock absorbers
- Stabilizer bar for reduced body roll
- Durability
-
- Heavy-duty leaf springs
- Reinforced control arms
- Corrosion-resistant coatings
- Adjustability
-
- Torsion bar front suspension
- Adjustable rear leaf spring shackles
- Replaceable bushings
- Load Capacity
-
- Heavy-duty rear suspension
- Upgraded spring rates
- Reinforced mounting points
- Handling
-
- Precise steering geometry
- Stabilizer bar for cornering stability
- Optimized suspension travel
Safety Features
- Structural integrity
-
- Reinforced frame mounts
- High-strength steel components
- Stability
-
- Anti-roll bars
- Wide track width for stability
- Braking Support
-
- Suspension designed for ABS compatibility
- Stable platform for braking forces
Comfort Features
- Vibration Dampening
-
- Rubber isolators
- Hydraulic shock absorbers
- Noise Reduction
-
- Insulated bushings
- Quiet suspension geometry
- Ride Smoothness
-
- Progressive-rate springs
- Optimized suspension travel
- Adjustability
-
- Torsion bar adjustment
- Rear spring preload adjustment
Accessories
- Upgrades
-
- Performance shock absorbers
- Polyurethane bushings
- Heavy-duty leaf springs
- Tools
-
- Torsion bar adjustment tool
- Spring compressor
- Bushing press
- Maintenance
-
- Grease fittings
- Replacement bushings
- Shock absorber mounting hardware
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect shock absorbers
- Check bushings for wear
- Lubricate suspension components
- Inspect leaf springs
- Check alignment
- Maintenance Notes
- Regular lubrication of suspension components is critical for longevity.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Defects in materials and workmanship
- Corrosion
- Miles: 100,000Years: 6Coverage: Rust perforation
- Powertrain
- Miles: 60,000Years: 5Coverage: Suspension components
- Roadside Assistance
- Miles: 36,000Years: 3Coverage: Towing and emergency services
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Forging of control arms
- Heat treatment of springs
- Robotic welding of components
- Quality Control
- inspection: 100% component testingDurability Testing: Simulated road conditionsCertifications: ISO 9001
- Sustainability Practices
-
- Recycled steel usage
- Eco-friendly coatings
- Waste reduction initiatives
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.1%Lead Time: 4 weeks
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect shock absorbers for leaks
- Check bushings for wear and tear
- Lubricate all suspension joints
- Inspect leaf springs for cracks
- Check wheel alignment
Regular lubrication is essential for smooth operation.
- Replace worn bushings
- Inspect and replace shock absorbers if necessary
- Check torsion bar adjustment
- Inspect control arms for damage
- Test suspension travel
Use factory-recommended parts for replacements.
- Replace all suspension bushings
- Inspect and replace leaf springs if needed
- Check and replace stabilizer bar links
- Perform full suspension alignment
- Test ride quality and handling
Major service may require specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What suspension components are compatible with the 1985-1994 GMC Safari?
What suspension components are compatible with the 1985-1994 GMC Safari?
The 1985-1994 GMC Safari is compatible with front coil springs, rear leaf springs, shock absorbers, and sway bars designed for this model. Ensure components match the vehicle's weight and trim specifications. Aftermarket upgrades like heavy-duty shocks or air suspension kits are available but require verification of fitment for specific years and configurations.
Q2 What maintenance is required for the GMC Safari's suspension system?
What maintenance is required for the GMC Safari's suspension system?
Regular maintenance includes inspecting shock absorbers, bushings, and springs for wear every 15,000 miles. Lubricate suspension joints annually and check for alignment issues. Replace worn components promptly to avoid uneven tire wear or handling problems. A professional inspection is recommended every 30,000 miles for a comprehensive assessment.
Q3 How do I replace the rear leaf springs on a 1985-1994 GMC Safari?
How do I replace the rear leaf springs on a 1985-1994 GMC Safari?
To replace rear leaf springs, safely lift the vehicle and secure it on jack stands. Remove the rear wheels, disconnect the shock absorbers, and unbolt the U-bolts securing the leaf springs. Install the new springs, reattach the U-bolts and shocks, and torque all bolts to the manufacturer's specifications. Lower the vehicle and test for proper alignment.
Q4 What should I do if my GMC Safari's suspension feels unstable?
What should I do if my GMC Safari's suspension feels unstable?
If the suspension feels unstable, inspect for worn shocks, broken springs, or loose components. Check tire pressure and alignment. Test drive the vehicle to identify specific issues like bouncing or drifting. Replace damaged parts and ensure all bolts are properly tightened. If problems persist, consult a professional mechanic for further diagnostics.
Q5 How can I improve the suspension performance of my GMC Safari?
How can I improve the suspension performance of my GMC Safari?
Upgrade to high-performance shock absorbers or air suspension kits for better handling and load capacity. Ensure proper alignment and tire inflation. Regularly inspect and maintain suspension components to prevent wear. Consider adding a sway bar for improved stability during cornering. Always verify compatibility with your vehicle's specifications.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1985-1994 GMC Safari Service Manual
Coming SoonComprehensive guide covering suspension system maintenance, repair, and troubleshooting for the 1985-1994 GMC Safari.
Technical Service Bulletin: Suspension Updates
Coming SoonOfficial bulletin detailing suspension-related updates and recommendations for the 1985-1994 GMC Safari.
GMC Safari Suspension Parts Catalog
Coming SoonCatalog listing OEM and aftermarket suspension parts for the 1985-1994 GMC Safari, including compatibility details.
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Technical Information
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