Remanufactured 6L50 Transmissions Built to Handle the Workload

If you’re seeing Chevy Colorados, GMC Canyons, or Cadillac CTS models rolling into your shop with transmission complaints, chances are it’s the 6L50. And if you’re seeing repeat failures? It’s time for a better solution.

At ACE, we remanufacture 6L50 units from the case up — upgraded, dyno-tested, and ready to install. No guesswork. No wasted hours. Just a solid replacement that gets your bay cleared and your customer back on the road.

6L50 Problems You Know Too Well

  • Torque converter clutch shudder and debris contamination
  • 2-3 or 4-5 shift flares under moderate load
  • Valve body wear triggering solenoid performance codes
  • Overheating and fluid breakdown in light towing applications
  • TCC solenoid faults and harsh lock-up behavior

We’ve seen these patterns in the field, and we build our remans to solve them — not just patch them.

What Makes ACE’s 6L50 Better

  • 🔧 Fully remanufactured — not just rebuilt
  • 🧪 Dyno-tested under simulated load and shift cycles
  • 🚛 Upgraded valve body and torque converter installed on every unit
  • 📦 Same-day shipping available on most builds
  • 🛡️ Backed by a 3-year / unlimited mileage warranty
  • 📂 Included with Mobil 1 synthetic fluid

Common Vehicles Using the 6L50

Our reman 6L50 fits a wide range of GM rear-wheel-drive applications:

  • Chevy Colorado / GMC Canyon
  • Cadillac CTS / STS / SRX
  • Chevy Camaro (3.6L models)
  • Holden Commodore / Caprice (export models)

Need to verify bellhousing or calibration? Give our tech line a call.

Why ACE Shops Keep Coming Back

  • ✅ Fixes the root cause — fewer comebacks, happier customers
  • ⏱️ Saves hours of teardown and diagnosis
  • 💬 Real tech support when your installer hits a snag
  • 🔁 Warranty is transferable for added resale value

Warranty That Works

  • ✔️ 3-Year / Unlimited Mileage Warranty
  • ✔️ Parts, labor, shipping, and Mobil 1 fluid included
  • ✔️ Nationwide warranty support for you and your customers

Core Return Policy — No Upfront Deposit, No Headaches

With ACE, our “Due On Receipt” customers don’t pay a core deposit upfront. We invoice it on paper, but it’s only due if the core isn’t returned within 120 days.

  • 🧾 No cash tied up at the time of order
  • 🔁 Full credit issued when the core is returned in rebuildable condition
  • ⏳ 120-day return window to give your shop flexibility

This helps you keep more cash on hand — and eliminates the usual hassle that comes with other reman suppliers.

Let’s Get Your 6L50 Shipped Today

👉 Request a quote in under 60 seconds
👉 Confirm specs with our team
👉 Most units ship same-day

Backed by ACE. Built to keep your shop moving. Need help? Give us a call at (800) 821-6552