---
product_id: 375504657
title: "Powertrax 1921-LR Lock-Right (Gm 10 Bolt)"
brand: "powertrax"
price: "€ 603.05"
currency: EUR
in_stock: true
reviews_count: 5
category: "Power Trax"
url: https://www.desertcart.it/products/375504657-powertrax-1921-lr-lock-right-gm-10-bolt
store_origin: IT
region: Italy
---

# 30 spline axle fitment enhanced off-road traction drop-in no-mod install Powertrax 1921-LR Lock-Right (Gm 10 Bolt)

**Brand:** powertrax
**Price:** € 603.05
**Availability:** ✅ In Stock

## Summary

> 🚀 Lock in traction, unlock your adventure!

## Quick Answers

- **What is this?** Powertrax 1921-LR Lock-Right (Gm 10 Bolt) by powertrax
- **How much does it cost?** € 603.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/375504657-powertrax-1921-lr-lock-right-gm-10-bolt)

## Best For

- powertrax enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Maintenance-free, clutchless design ensures long-lasting, reliable performance.
- • **Seamless DIY Upgrade:** Drop-in design means no modifications—get back on the road faster.
- • **Versatile Compatibility:** Fits GM 8.5" differentials with 30 spline axles across multiple Chevy, GMC, Buick, and Cadillac models.
- • **Confidence on Every Drive:** Backed by a 2-year/100,000-mile warranty for peace of mind under the toughest conditions.
- • **Unmatched Traction Control:** Locks both wheels for superior grip in mud, snow, and rugged terrain.

## Overview

The PowerTrax 1921-LR Lock-Right Differential Locker is a precision-engineered, drop-in upgrade for GM 8.5" 30 spline axles, delivering superior traction by locking both wheels when needed. Designed for a wide range of Chevrolet, GMC, Buick, and Cadillac vehicles, it offers maintenance-free durability and easy installation with no modifications. Perfect for off-road enthusiasts and heavy-duty drivers, it comes with a 2-year or 100,000-mile warranty, ensuring reliable performance on and off the road.

## Description

PowerTrax 1921-LR Lock-Right Differential Locker – GM 8.5" 30 Spline – Open – Compatible with 1989-1998 Chevrolet, GMC, Buick, Cadillac, and Oldsmobile – Front/Rear🔹 Product Overview:The PowerTrax 1921-LR Lock-Right Differential Locker is designed to fit GM 8.5" differentials with 30 spline axles, providing an enhanced off-road experience and reliable performance for vehicles like Chevrolet, GMC, Buick, and Cadillac.🔹 Features & Benefits:Improved Traction: The Differential Locker engages both wheels when necessary, delivering maximum traction during off-road, towing, and low-traction situations.Simple Installation: Drop-in design for easy installation with no modifications needed. Ideal for DIY mechanics and professional installations alike.Durable & Maintenance-Free: Built to last with no clutches or friction plates, ensuring long-lasting performance without the need for regular maintenance.Optimal for On/Off-Road: Greatly enhances vehicle handling for both on-road and off-road conditions, making it perfect for tough terrains, mud, and snow.🔹 Applications & Compatibility:1989-1996 Buick Commercial Chassis1987-2005 Chevrolet Blazer1989-1999 Chevrolet C15001992-1999 Chevrolet K1500 Suburban1989-1998 GMC K15001996-1998 GMC Savana 15001992-1998 GMC Yukon1989-1991 Oldsmobile Custom Cruiser1989-1989 Pontiac Bonneville🔹 Replaces for:Auburn Gear: 542022, 544906PowerTrax: 9207853005USA Standard Gear: SL GM8.5-30🔹 Warranty:Comes with a 2-year or 100,000-mile warranty, ensuring long-term reliability and optimal performance for all types of driving conditions.🔹 Why Choose PowerTrax?PowerTrax is a trusted name in the off-road industry, known for providing high-quality, durable differential lockers that enhance vehicle performance. Whether you're on a rugged trail or a smooth highway, PowerTrax offers the best solution for better traction.

Review: INSTALACIÓN FACIL Y SIN MAYORES COMPLICACIONES, EL INSTRUCTIVO NO EXPLICA 100% COMO HACERLO PERO EN YOUTUBE HAY MUCHOS TUTORIALES DE COMO HACERLO. ENCAJO PERFECTO PARA UN EJE FORD 8.8 DE EXPLORER 2001.
Review: Will not fit in a 10 bolt with a g80 carrier pull your diff cover first make sure ya don’t have the factory limited slip junk that only spins one tire

## Features

- ✅ PowerTrax Lock-Right Differential Locker for GM 8.5" with 30 spline axles. Perfect for vehicles like Chevrolet, GMC, Buick, and Cadillac for both front and rear differentials.
- ✅ Designed for open differentials, it allows for enhanced traction by locking both wheels together when necessary, providing superior grip during off-roading, towing, and handling heavy loads.
- ✅ Easy drop-in installation with no modifications required, offering a seamless upgrade to your existing differential. Ideal for trucks and SUVs like the Chevrolet Silverado and GMC Yukon.
- ✅ Features a durable, maintenance-free design that ensures consistent performance, longevity, and superior traction for both on-road and off-road driving conditions.
- ✅ Backed by a 2-year or 100,000-mile warranty, offering peace of mind and reliability for vehicles like Chevrolet K1500, GMC Jimmy, and Buick Roadmaster under tough conditions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003JBVBD2 |
| Best Sellers Rank | #4,290 in Automotive ( See Top 100 in Automotive ) #33 in Automotive Replacement Drive Train Parts |
| Brand | PowerTrax |
| Customer Reviews | 4.2 4.2 out of 5 stars (395) |
| Date First Available | 27 June 2014 |
| Item Weight | 3.18 Kilograms |
| Item model number | 1921-LR |
| Manufacturer | Powertrax |
| Manufacturer Part Number | 1921-LR |
| Model | 1921-LR |
| OEM Part Number | 1921-LR |

## Images

![Powertrax 1921-LR Lock-Right (Gm 10 Bolt) - Image 1](https://m.media-amazon.com/images/I/61X4usZnHdL.jpg)
![Powertrax 1921-LR Lock-Right (Gm 10 Bolt) - Image 2](https://m.media-amazon.com/images/I/61ZJjzBCgHL.jpg)
![Powertrax 1921-LR Lock-Right (Gm 10 Bolt) - Image 3](https://m.media-amazon.com/images/I/61dghsvulzL.jpg)
![Powertrax 1921-LR Lock-Right (Gm 10 Bolt) - Image 4](https://m.media-amazon.com/images/I/71Tnho66FIL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***O on 6 June 2022*

INSTALACIÓN FACIL Y SIN MAYORES COMPLICACIONES, EL INSTRUCTIVO NO EXPLICA 100% COMO HACERLO PERO EN YOUTUBE HAY MUCHOS TUTORIALES DE COMO HACERLO. ENCAJO PERFECTO PARA UN EJE FORD 8.8 DE EXPLORER 2001.

### ⭐⭐ Review
*by C***R on 13 November 2025*

Will not fit in a 10 bolt with a g80 carrier pull your diff cover first make sure ya don’t have the factory limited slip junk that only spins one tire

### ⭐⭐⭐⭐⭐ Review
*by D***B on 14 February 2024*

Best locker for the dollars!!

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-17*