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PowerTrax 1240-LR Lock-Right Differential Locker, 30 Spline, Fits Chrysler 8.75" (741/742/489), Compatible with Dodge Challenger, Coronet, Plymouth Barracuda, Fury
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 1, 2026 8:08 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Amazon.com
Product Details
✓✅ Automatic Locking Differential – Delivers full traction by locking both wheels together, preventing slip in wet, rocky, or off-road conditions, ideal for classic muscle cars and off-road enthusiasts.
✓✅ Designed for Chrysler 8.75" Axles – Engineered for 30-spline open differentials with removable carriers, fits 741, 742, and 489 cases, providing reliable performance for street, strip, and off-road use.
✓✅ Drop-In Installation, No Adjustments – Installs quickly inside the existing open differential case, eliminating the need for major modifications or re-gearing, making it ideal for DIY and performance upgrades.
✓✅ Heavy-Duty Steel Construction – Made from hardened steel to handle high torque loads and aggressive acceleration, ensuring durability for both everyday drivers and high-performance applications.
✓✅ Replaces Auburn Gear & Eaton Parts – Direct replacement for Auburn Gear 542051 and Eaton 913A572, offering improved traction and performance without altering the factory ring and pinion setup.
⚙️ Specifications
Sold By
Amazon.com
Amazon Choice
1
Max Order Quantity
30
Category Slug
automotive
Brand Store
PowerTrax
Buying Options
NEW
Stock State
Buyable
Stock Note
Only 2 left in stock
Variant Dimensions
Style
Related Codes
47
Sibling Codes
43
