# TMC K78-100274 Rear Shock Absorber for 1999-2007 Chevrolet Silverado 1500 Classic, GMC Sierra 1500 Classic, Chevrolet Silverado 1500 & more

### Performance Overview

Transit Auto offers the most comprehensible shocks absorber kits on the market. The unmatched robustness coupled with longer lasting components make our kits the best sellers in every category. Transit Auto kits are the go-to kits for thousands of reputed mechanical shops in North America and are now available to customers. TMC K78-100274 is a vehicle-specific shock absorber designed for compatible applications for 1999-2007 Chevrolet, GMC Silverado 1500 Classic, Sierra 1500 Classic, Silverado 1500, Sierra 1500.

### Key Features

-   Precision engineered with G-Force technology for the ultimate in safety and performance
-   Working tube made of SteelPro™ alloy steel to provide superior strength, toughness and impact resistance while maintaining unmatched ductility
-   Surface-treated provides abrasive and contaminant protection while preventing rust
-   Piston rods made of S45C medium carbon steel for precision and wear resistance. Hard chrome plating process ensure extended durability of the rod
-   Reinforced piston provides optimal tube pressure control and resistance for increase ride quality

### Vehicle Fitment

**Fitment Position:** Rear

**Fitment Summary:** 1999-2007 Chevrolet, GMC Silverado 1500 Classic, Sierra 1500 Classic, Silverado 1500, Sierra 1500

**Position:** Rear

-   2007 Chevrolet Silverado 1500 Classic — Position: Rear; Fitment Precision: 4WD; Note: Without Electronic Suspension
-   2007 GMC Sierra 1500 Classic — Position: Rear; Fitment Precision: AWD/4WD; Note: Without Electronic Suspension
-   2006 Chevrolet Silverado 1500 — Position: Rear; Fitment Precision: LT/WT/Hybrid/LS and with 4WD; Note: Without Electronic Suspension
-   2005 Chevrolet Silverado 1500 — Position: Rear; Fitment Precision: Base/LT/Hybrid/LS and with 4WD; Note: Without Electronic Suspension
-   2004 Chevrolet Silverado 1500 — Position: Rear; Fitment Precision: Base/LT/WT/Hybrid/LS and with 4WD; Note: Without Electronic Suspension
-   2003 Chevrolet Silverado 1500 — Position: Rear; Fitment Precision: Base/LT/WT/LS and with 4WD; Note: Without Electronic Suspension
-   2002-2006 GMC Sierra 1500 — Position: Rear; Fitment Precision: AWD/4WD; Note: Without Electronic Suspension
-   1999-2002 Chevrolet Silverado 1500 — Position: Rear; Fitment Precision: 4WD; Note: Without Electronic Suspension
-   1999-2001 GMC Sierra 1500 — Position: Rear; Fitment Precision: 4WD; Note: Without Electronic Suspension

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

**What part number is this?**  
The listed part number is K78-100274.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

### Common Searches

-   Shock Absorber for Silverado 1500 Classic
-   Shock Absorber for Chevrolet Silverado 1500 Classic
-   K78-100274 fitment
-   TMC Shock Absorber
-   Rear Shock Absorber
-   1999 Chevrolet Silverado 1500 Classic Shock Absorber

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2007

Chevrolet

Silverado 1500 Classic

Rear

4WD

Without Electronic Suspension

2007

GMC

Sierra 1500 Classic

Rear

AWD/4WD

Without Electronic Suspension

2006

Chevrolet

Silverado 1500

Rear

LT/WT/Hybrid/LS and with 4WD

Without Electronic Suspension

2005

Chevrolet

Silverado 1500

Rear

Base/LT/Hybrid/LS and with 4WD

Without Electronic Suspension

2004

Chevrolet

Silverado 1500

Rear

Base/LT/WT/Hybrid/LS and with 4WD

Without Electronic Suspension

2003

Chevrolet

Silverado 1500

Rear

Base/LT/WT/LS and with 4WD

Without Electronic Suspension

2002

GMC

Sierra 1500

Rear

AWD/4WD

Without Electronic Suspension

2003

GMC

Sierra 1500

Rear

AWD/4WD

Without Electronic Suspension

2004

GMC

Sierra 1500

Rear

AWD/4WD

Without Electronic Suspension

2005

GMC

Sierra 1500

Rear

AWD/4WD

Without Electronic Suspension

## Details

- **Price:** 92.06 CAD
- **Vendor:** TMC
- **Type:** Shock Absorber
- **Tags:** 2002 GMC Sierra 1500, 2003 Chevrolet Silverado 1500, 2003 GMC Sierra 1500, 2004 Chevrolet Silverado 1500, 2004 GMC Sierra 1500, 2005 Chevrolet Silverado 1500, 2005 GMC Sierra 1500, 2006 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, 2007 GMC Sierra 1500 Classic, Automotive Parts, Daily Driver, Direct Replacement, K78-100274, Rear, Shock Absorber, Shock Absorber Kit, TMC, TMC K78-100274, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 92.06 CAD | In stock |

## Images

- TMC K78-100274 Shock Absorber for 1999-2007 Chevrolet Silverado 1500 Classic, GMC Sierra 1500 Classic, Chevrolet Silverado 1500 & more - Rear product image

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/tmc-k78-100274-shock-absorber-for-1999-2007-chevrolet-silverado-1500-classic-gmc-sierra-1500-classic-chevrolet-silverado-1500-and-more-rear-k78-100274)
> Updated: 2026-05-30