How to Decode Your VIN to Find the Right Used Auto Part
Quick Answer: Your VIN (Vehicle Identification Number) is a 17-character code stamped on every vehicle since 1981. It encodes your […]
Used Cylinder Head Buyer’s Guide: Crack Test, Valve Inspection, Compatibility
A used cylinder head is one of the smartest used-parts purchases an engine builder or shop owner can make —
Aluminum vs Cast Iron Used Cylinder Head: Choosing the Right One
At the used-parts counter, the aluminum vs cast iron question is rarely a real choice — your engine was designed
Signs of a Cracked Cylinder Head — When Used Is Worth Buying
If the engine in your driveway is overheating, drinking coolant with no puddle underneath, and pushing white smoke out the
Used Differential Buyer’s Guide: Front vs Rear, Open vs Locking
A truck differential is the single most expensive drivetrain component to replace new — and the single best-value used part
Posi, Limited-Slip, Locking Differential: Which Used Diff Do You Need?
Posi, Trac-Lok, Anti-Spin, Gov-Lok, e-Locker — every manufacturer brands their traction device differently, and parts catalogs use the terms interchangeably
Differential Gear Ratio Compatibility: VIN, RPO, Axle Tag Decoded
The single most expensive mistake in used differential and rear axle ordering is the wrong gear ratio. A 3.73 ring
Signs of a Failing Differential — How to Diagnose Before You Buy
The howl that started at 60 mph two months ago is louder now. The fluid you drained has shiny metal
Used Axle Shaft vs CV Axle: Symptoms, Cost, Compatibility
Half of all “axle” calls into our line are misdiagnosed. The customer says “I need an axle” but what they
Front Axle Shaft vs Rear Axle Shaft: Buyer’s Guide
“I need an axle shaft” is one of the most under-specified phone calls we get. Half the time the customer