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Final Drives & Gearbox Blog

Practical, no-fluff guides on identifying, sourcing and installing final drives, travel gearboxes and swing gearboxes for CAT, Deere, Komatsu, CNH and Volvo.

Guide · Updated 2026

How to Identify Your Final Drive Part Number (CAT, Deere, Komatsu & Volvo)

Where to find your final drive or gearbox part number, how to read a Bosch Rexroth cross-reference, and how to get a correct match the first time.

Guide · Updated 2026

Travel Gearbox vs Swing Gearbox: What's the Difference, and Which Do You Need?

The mechanical difference between a travel (boom) gearbox and a swing (rotation) gearbox, and how to tell them apart on your excavator.

Guide · Updated 2026

6 Early Signs of a Failing Final Drive — Before It Costs You Downtime

Noise, leaks and movement symptoms that mean a gearbox is failing, plus what to do before it takes your machine out of the fleet.

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CAT Swing Gearbox vs Travel Gearbox: What's the Difference?

Swing vs travel gearbox on CAT excavators — what each does and how to tell them apart by part number.

How Much Does It Cost to Replace a Final Drive?

What a final drive, swing gearbox or travel gearbox replacement really costs and what moves the price.

How to Check If a Final Drive Fits Your Excavator

Verify a CAT / Deere / Komatsu final drive fits by OEM part number and machine serial before you buy.