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