Learn

Straight answers on remanufactured drivetrain parts and shop equipment. Our Learn hub explains how the parts work, how to spot trouble, and how to choose the right unit before you buy. Written by the team at Steel Bay Automotive Supply.

Transfer Cases

• What Is a Transfer Case? (What It Does on 4WD and AWD Vehicles)
• Bad Transfer Case Symptoms: 7 Warning Signs to Watch For
• Chained vs Divorced Transfer Case (Plus NP and Dana Model Guide)
• Transfer Case Fluid Change: Cost, Intervals, and How It Works

Engines & Buying

• Remanufactured vs Rebuilt vs Used Engine: What Is the Difference?
• What Is a Core Charge? Core Returns and Refunds Explained

Differentials

• Rear Differential Fluid Change: Cost, Intervals, and Why It Matters
• Limited-Slip vs Open Differential: Which Do You Have and Which Is Better?

Shop Equipment

• How to Choose a Car Lift for a Home Garage (Two-Post vs Four-Post vs Scissor)

Maintenance & How-To (Blog)

• How to Check Your Transmission Fluid (Step by Step)
• Transmission Fluid Leak: Causes, Symptoms, and Fixes
• 4L60E vs 4L80E: How to Tell Which GM Transmission You Have
• Transmission Fluid Change Cost: What to Expect in 2026
• How Much Does It Cost to Replace an Engine?
• Signs Your Transfer Case Is Failing (and What to Do Next)
• QuickJack and Portable Car Lifts: Are They Worth It?

Ready to Shop?

Browse our catalog by line: engines, transmissions, transfer cases, differentials, and shop equipment. Every unit ships with free shipping and honest condition disclosure. Questions? Contact us.