How do I know if my shocks are worn?

Signs include: excessive bouncing after bumps, nose diving when braking, swaying in turns, uneven tire wear, and oil leaking from the shock body. Compatible vehicles include 1989-1991 Chevrolet, GMC (1161 applications).

Should shocks be replaced in pairs?

Yes, always replace shocks in axle pairs (both front or both rear) to maintain balanced damping and vehicle stability.

What vehicles does this Suspension Shock Absorber fit?

This FCS Suspension Shock Absorber (rear) (Part #342642) fits specific vehicle applications. Compatible vehicles include 1989-1991 Chevrolet, GMC (1161 applications). Use the compatibility checker above to verify fitment for your exact vehicle including engine and trim options.

Is this part covered by warranty?

Yes, this FCS Suspension Shock Absorber includes a 24-month limited warranty covering defects in materials and workmanship. AutoBuffy also offers 30-day hassle-free returns if the part doesn't fit your vehicle.

How fast is shipping?

AutoBuffy ships fast — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days. Expedited shipping is available at checkout.

Check if this fits your car first

We can’t guarantee fitment or accept fitment returns without a vehicle selected.

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Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC - 1

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Name: Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC
Brand: FCS
SKU: 342642
Price: 20.95 USD
Availability: InStock
Rating: 4.9 (12847 reviews)

Authorized Dealer

Special Offer

Buy 2, Get 5% Off

2 for $39.80•Save $2.10

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

BrandFCSLearn More

PositionRear

Qty/Vehicle2

ConditionNew

Includes: (1) Suspension Shock Absorber, Hardware

UPC: 91037420053

Interchanges: 210172

19% OFF$2095

$25.95Save $5.00•In Stock•Fast Shipping

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Product Specifications

Features & Benefits

•Direct OE fit - no modifications needed
•Meets or exceeds manufacturer specs
•24-month warranty included
•Fast Shipping — ships same day before 3 PM ET

BrandFCS

Part Number342642

Part TypeSuspension Shock Absorber

ConditionNew

Qty Per Vehicle2

Compressed Length13.98

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Frequently Asked Questions

We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.

What makes FCS shock absorbers a good choice?

FCS is headquartered in Detroit, Michigan with over 60 full-time engineers. They manufacture for OE companies worldwide, meaning you get OE-quality engineering at aftermarket prices. All FCS shocks are ISO 9001 and TS16949 certified.

How long do FCS shock absorbers typically last?

FCS shocks are designed for 50,000-80,000+ miles of reliable performance under normal driving conditions. Replace when you notice bouncy ride, poor handling, excessive body roll, or visible oil leaks.

Should I replace shocks in pairs?

Yes, it's recommended to replace shock absorbers in pairs (both fronts or both rears) to ensure balanced handling and ride quality. Mismatched shocks can cause uneven wear and unpredictable handling.

What's AutoBuffy's return policy?

AutoBuffy offers a 30-day return policy on all FCS products. Items must be unused and in original packaging.

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Product Specifications

Brand

FCS

Part Type

Suspension Shock Absorber

Extended Length

23.43

Dimensions

2.56" x 2.56" x 21.65"

Part Number

342642

Compressed Length

13.98

Stroke Length

9.45

Weight

5.25 PG

Compressed Length13.98

Extended Length23.43

Stroke Length9.45

Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more

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Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Authorized Dealer

Special Offer

Buy 2, Get 5% Off

2 for $39.80•Save $2.10

$2095

$25.95SAVE 19%

Dealer charges $37.63— save $16.68

QTY

Fast delivery Mon, Jun 22

Ships To —Edit

In Stock10 or more available

Fast
Shipping

30-Day
Returns

24-Mo
Warranty

Expert
Support

OE REPLACEMENT

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Part #:342642

Suspension Shock Absorber

$20^.95In Stock

$25.95Save 19%

Quantity:

In Stock10 or more available

Fast delivery between Mon, Jun 22 to Mon, Jun 22

Ships To:

Key Features

OEM-Equivalent QualityMeets/exceeds factory specs

American BusinessMaryland since 1986

24-Month WarrantyLimited coverage on every part

Fast Same Day ShippingWe ship all orders the same business day before cutoff

Product Specs

BrandFCS

Part Number342642

Part TypeSuspension Shock Absorber

ConditionNew

Compressed Length13.98

Extended Length23.43

Stroke Length9.45

Dimensions2.56" x 2.56" x 21.65"

Compatibility

Vehicle Compatibility

Guaranteed to fit 0 vehicles from Infinity--Infinity

No compatibility data available

Interchanges

Part numbers from other manufacturers that are compatible

JJFV210172

Questions & Answers

Have a Question?

Ask Marvin, our Car Expert

Things to Know

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts

Check if this fits your car first

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Product Specifications

Compatibility

Vehicle Compatibility

Frequently Asked Questions

Compatibility

Vehicle Compatibility

Product Specifications

Interchanges

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Rear Suspension Shock Absorber | FCS 342642 Fits Chevrolet GMC

Key Features

Product Specs

Compatibility

Vehicle Compatibility

Interchanges

Questions & Answers

Things to Know

24 Month Warranty

30 Day Returns

Fast Same Day Shipping

About This Suspension Shock Absorber

Key Features

Signs This Part Needs Replacement

FCS

Installation Guide

Tools Needed

Frequently Asked Questions