---
product_id: 142145764
title: "4\" Lift Kit for 1977-1987 GM K10/K15 Pickup K5 Blazer - 145.20"
brand: "rough country"
price: "¥439775"
currency: JPY
in_stock: true
reviews_count: 13
category: "Rough Country"
url: https://www.desertcart.jp/products/142145764-4-lift-kit-for-1977-1987-gm-k10-k15-pickup
store_origin: JP
region: Japan
---

# Fits up to 35-inch tires 4-inch lift height Vehicle-specific leaf springs 4" Lift Kit for 1977-1987 GM K10/K15 Pickup K5 Blazer - 145.20

**Brand:** rough country
**Price:** ¥439775
**Availability:** ✅ In Stock

## Summary

> ⬆️ Upgrade your classic GM truck to legendary status with Rough Country’s 4" Lift Kit!

## Quick Answers

- **What is this?** 4" Lift Kit for 1977-1987 GM K10/K15 Pickup K5 Blazer - 145.20 by rough country
- **How much does it cost?** ¥439775 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/142145764-4-lift-kit-for-1977-1987-gm-k10-k15-pickup)

## Best For

- rough country enthusiasts

## Why This Product

- Trusted rough country brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tire Game Strong:** Supports aggressive 35-inch tires for that commanding, rugged stance.
- • **Built to Last & Perform:** Premium N3 shocks with 10-stage valving deliver balanced on-road comfort and off-road toughness.
- • **Steering Geometry Perfected:** Includes raised steering arm for tight, responsive handling post-lift.
- • **Tailored Suspension Comfort:** Vehicle-specific leaf springs ensure a smooth, factory-like ride even off-road.
- • **Elevate Your Ride with Precision:** 4-inch lift boosts ground clearance for conquering any terrain with confidence.

## Overview

The Rough Country 4" Lift Kit (model 145.20) is a precision-engineered suspension upgrade designed for 1977-1987 GM K10/K15 pickups and K5 Blazers. It raises your truck by 4 inches, allowing clearance for up to 35-inch tires, and includes vehicle-specific leaf springs, premium N3 shocks, and a raised steering arm to maintain optimal handling. This bolt-on kit enhances off-road capability and ride comfort while delivering an aggressive, leveled stance backed by a limited lifetime warranty.

## Description

Transform Your Truck's Stance and Capability: Upgrade your GM truck from front to back with Rough Country's 4" Suspension Lift Kit. This premium lift delivers a leveled, aggressive look while enhancing ride height and off-road readiness all with an easy bolt-on installation.Engineered for Superior Ride Quality: This kit includes application-specific front lifted leaf springs, delivering increased ground clearance without sacrificing ride comfort or control. Rear lift blocks and brake line brackets maintain proper geometry, ensuring a smooth, factory-like ride after installation. For a complete suspension upgrade, the kit is also available with replacement rear lifted leaf springs, offering consistent rear lift and eliminating the need for lift blocks.Enhanced Performance with N3 Series Shocks: Rough Country's N3 series shocks come standard valved for your exact application and designed to provide a perfect balance of on-road smoothness and off-road capability. Featuring a 10-stage variable valving system, high-pressure nitrogen charge, and durable 54mm shock body with 18mm piston rod, these shocks are built for performance and longevity.Room for Bigger Tires: Make room for aggressive wheel and tire combos. This 4" lift offers enough clearance to run up to a 35" tall tire with proper backspacing, giving your truck the rugged stance it deserves.Improved Steering and Handling: To maintain proper drivability, a raised steering arm is included correcting steering geometry for tight, responsive handling after the lift.Limited Lifetime Warranty: Rough Country backs this kit with a Limited Lifetime Warranty, giving you long-term confidence on and off the road. Note: If vehicle is equipped with a front sway-bar, drop brackets are recommended RC#1019. Optional Rear Springs: To confirm rear spring size a measurement will have to be pulled from eyelet to eyelet. Vehicles with factory quad shocks (2 front shocks per side) will simply use a single aftermarket shock. This lift kit fits a wide range of classic 4WD Chevy and GMC models, including the 1989–1991 Chevy V1500 Suburban, 1987–1991 Chevy Blazer, 1987–1988 Chevy V10 Suburban, and 1987 Chevy V10. It also covers 1977–1986 Chevy K5 Blazer, K10 Suburban, and K10 models. For GMC, it fits the 1987 V1500, 1979–1986 K1500, 1977–1991 Jimmy, and 1977–1978 K15 Suburban and K15 models.

Review: Great product. Excellent price. - Great product and great price. Highly recommend.
Review: Awesome - Thank you

## Features

- Boosted Ground Clearance: Extra lift improves off-road capability and clears obstacles with ease.
- Vehicle-Specific Leaf Springs: Front springs tailored for a precise fit and smooth ride.
- Fits 35-Inch Tires: Run up to 35" tires confidently without rubbing issues.
- Raised Steering Arm Included: Maintains proper steering geometry for better control.
- Premium N3 Shocks: Tuned for your vehicle to deliver comfort on-road and performance off-road.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FP33BZ4 |
| Auto Part Position | Driveline |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #411,931 in Automotive ( See Top 100 in Automotive ) #814 in Automobile Chassis Body & Suspension Lift Kits |
| Brand | Rough Country |
| Construction | Drilling Required: Yes |
| Customer Reviews | 4.1 4.1 out of 5 stars (43) |
| Date First Available | April 3, 2020 |
| Exterior | Painted |
| Global Trade Identification Number | 00843030129996 |
| Included Components | (4) N3 Series Shocks, 4" Lift Blocks & Add-A-Leaf Springs, Brake Relocation Brackets, Lifted Coil Leaf Springs & Steering Arm, U-Bolts & Hardware |
| Item Weight | 149.5 pounds |
| Item model number | 145.20 |
| Manufacturer | Rough Country |
| Manufacturer Part Number | 145.20 |
| Material | Alloy Steel, Aluminum, Rubber, Zinc |
| Maximum Lifting Height | 4 Inches |
| Model | Rough Country 4" Lift Kit for 1977-1987 GM C10/C15 K10/K15 K5 Blazer - 145.20 |
| Product Dimensions | 10 x 10 x 10 inches |
| Safety Rating | _ |
| UPC | 843030129996 |

## Product Details

- **Auto Part Position:** Driveline
- **Brand:** Rough Country
- **Material:** Alloy Steel, Aluminum, Rubber, Zinc
- **Maximum Lifting Height:** 4 Inches

## Images

![4" Lift Kit for 1977-1987 GM K10/K15 Pickup K5 Blazer - 145.20 - Image 1](https://m.media-amazon.com/images/I/61JwpVvZm+L.jpg)

## Questions & Answers

**Q: Will this work for 2wd?**
A: It will not work on a 2WD!

**Q: What else do I need for this lift...do I need brake lines..I have a 88 GMC JIMMY just don't want to get the project started and have to order more??**
A: I installed this lift on 89 gmc jimmy, it relocates the rear brake lines, the front ones are long enough

**Q: will this lift work on the 88 suburban v10?**
A: Yep

**Q: what shocks do we use on a 1987 k-5 blazer with quad shocks and a 4 inch lift**
A: Heavy soft dampening shocks that the travel is long enough for full travel of the lift

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product. Excellent price.
*by M***G on April 12, 2024*

Great product and great price. Highly recommend.

### ⭐⭐⭐⭐⭐ Awesome
*by J***E on June 26, 2024*

Thank you

### ⭐⭐⭐ Springs seem stiff
*by M***R on November 10, 2025*

Shackle angle is weird I’m afraid it’s gonna have a rough ride!

## Frequently Bought Together

- Rough Country 4" Lift Kit for 1977-1987 GM C10/C15 K10/K15 K5 Blazer - 145.20
- Rough Country Front Sway Bar Drop Brackets for 67-87 Chevy/GMC C10/K10-1019,Black
- Rough Country N3 Dual Steering Stabilizer for 69-87 Chevy/GMC C10/K10-8735630

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-19*