Monroe 37156 Shock Absorber - Rear

Monroe OESpectrum Rear Shock Absorber

The Monroe OESpectrum Light Truck Shock Absorber 37156 is built for rear suspension service on select GM minivans and crossovers, including Chevrolet Uplander, Pontiac Montana, Buick Terraza, and Saturn Relay applications. It is designed to restore factory-style drivability while improving handling control and reducing noise, vibration, and harshness.

Key Features

• OESpectrum Light Truck shock absorber for rear suspension use
• Compressed length: 12.75 in; extended length: 20.25 in; travel length: 7.5 in
• Metal dust shield included for added protection
• Extended bumper stop included; compressed bumper stop not included
• Upper and lower mounting code: LS26
• Loop bushing and sleeve mount design with 12 mm sleeve ID
• Recommended OE application-specific replacement for stock suspension setups

Product Details

Monroe OESpectrum shock absorbers are tuned to bring back original factory ride characteristics with controlled damping and consistent response. Part number 37156 uses a loop bushing and sleeve mount at both ends, with a 12 mm sleeve ID and LS26 mounting code, making it a direct-fit rear shock for the listed applications. This part cross-references KYB 344338 for the same application.

Vehicle Fitment

• Fits 2005-2009 Chevrolet Uplander, rear; without Automatic Rear Air Leveling System; without Independent Rear Suspension; Recommended OE Application-Specific Replacement
• Fits 2005-2009 Pontiac Montana, rear; without Automatic Rear Air Leveling System; without Independent Rear Suspension; Recommended OE Application-Specific Replacement
• Fits 2005-2007 Buick Terraza, rear; without Automatic Rear Air Leveling System; without Independent Rear Suspension; Recommended OE Application-Specific Replacement
• Fits 2005-2007 Saturn Relay, rear; without Automatic Rear Air Leveling System; Recommended OE Application-Specific Replacement
• Fits 2001-2005 Pontiac Aztek, rear; Enhances performance for vehicles with stock components
• Fits 1999-2005 Pontiac Montana, rear; without Automatic Rear Air Leveling System; Recommended OE Application-Specific Replacement
• Fits 1997-2004 Oldsmobile Silhouette, rear; without Automatic Rear Air Leveling System; Recommended OE Application-Specific Replacement
• Fits 1997-1999 Pontiac Trans Sport, rear; without Automatic Rear Air Leveling System; Recommended OE Application-Specific Replacement

Common Repair Uses

• Rear suspension bounce or excessive body movement
• Uneven ride quality over bumps and rough pavement
• Noisy or harsh rear shock operation
• Loss of control during braking, cornering, or load changes
• Worn OE-style rear shock replacement on Chevrolet Uplander and Pontiac Montana platforms

Installation Notes

Verify rear suspension configuration before ordering, especially on Chevrolet Uplander, Pontiac Montana, Buick Terraza, and Saturn Relay models with leveling systems or independent rear suspension. Confirm the LS26 mounting style, sleeve dimensions, and compressed/extended lengths against the original shock absorber before installation. Professional installation and a post-repair suspension inspection are recommended.

Quality Assurance

Monroe OESpectrum light truck shocks are engineered to support factory-style ride control and consistent damping performance for daily driving and load-carrying use.