2,052+ verified used Chevy transmissions in stock across every model year — 4L60E/4L65E, 4L80E/4L85E, 6L80E/6L90E, 8L90 8-speed, 10L80 10-speed, Allison 1000, and more. VIN-matched to your vehicle, Shift-Tested by ASE-certified technicians, photographed before shipment, backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.
Real transmissions from our warehouse, ID-stamp matched and ready to ship. Our Chevy inventory spans every major GM transmission family — light-duty automatics, heavy-duty truck units, modern 8/10-speeds, the Allison diesel, and manual gearboxes.
Why Buy a Used Chevy Transmission from Auto Power Source
Chevy transmissions span the full duty cycle of the American road — from the 4L60E in millions of Silverados and Tahoes through the heavy-duty Allison 1000 backing Duramax diesels, to the modern 10L80 ten-speed jointly developed with Ford in current half-ton trucks. Our 2,052+ verified Chevy transmissions span every major GM gearbox family across model years from the early 1990s through present.
Every Chevy transmission we sell has been pulled from a low-mileage donor vehicle, cataloged by VIN, and held in our climate-controlled warehouse pending sale. Each unit went through our six-step inspection — VIN-matching, ASE testing, Shift-Tested through every gear under load, full visual inspection, multi-angle photography, and palletized shipping. Our ASE-certified technicians do the testing; rejected units never reach the buyer. GM pairs specific transmissions with specific engines and 2WD vs 4WD configurations, so VIN-matching is critical — a 4L60E from a 2WD Silverado is not the same as a 4L60E from a 4WD Silverado.
You pay a fraction of dealer-new pricing for identical GM engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and get 30 days from delivery to return for any reason — no restocking fees. Up to a 3-year warranty covers you if anything goes wrong after install. Across 46,000+ engines and transmissions shipped, we hold a 0% fitment-related return rate.
📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →
Your Chevy Transmission Options: Compared
Most Chevy owners face four real choices when their transmission fails:
← Swipe sideways to see all columns →
Option
Cost
Reliability
Warranty
Fitment Match
Used OEM (this collection)
$$$ Best Value
High
Up to 3 years
VIN-matched
New OEM (dealer)
$$$$$ 2-4× more
High
Manufacturer
Exact
Rebuilt / Reman
$$$$
Varies
6-12 mo
May adapt
Junkyard
$ Cheapest
Unknown
None
DIY
Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.
Chevy Transmission Buying Guide
Five things to verify before buying a used Chevy transmission:
Confirm the exact transmission tag, not just the model name. GM uses a tag (RPO code) plus VIN digit to identify the exact unit. The same model year Silverado can ship with multiple transmission options.
2WD and 4WD versions are not interchangeable. Silverado, Sierra, Tahoe, and Suburban transmissions come in 2WD and 4WD variants with different output shafts and tail housings. Always specify your drivetrain.
For Allison 1000 units, confirm Duramax generation pairing. The Allison 1000 has multiple variants matched to LB7, LLY, LBZ, LMM, and LML Duramax generations. Text us your VIN for the exact pairing.
For 6L80E/6L90E units, verify torque converter and solenoid condition. These units commonly have torque converter shudder issues by the 100k-mile mark. We test specifically for this.
Always replace transmission fluid at installation. GM specifies Dexron VI for most modern automatics — using the wrong fluid type will cause shift quality issues and void your warranty from day one.
Our ASE-certified technicians verify every one of these points against your VIN before any transmission ships.
📞 Need help choosing the right transmission? Talk to our team live, 24h Mon-Sat.Call 1-877-313-8995
Frequently Asked Questions
What is the warranty on a used Chevy transmission?
Up to 3 years, depending on the specific unit. The exact warranty term is listed on each product page.
What does ASE-tested mean?
ASE-certified technicians Shift-Test transmissions through all gears under load, plus noise & smoke verification, visual inspection, and multi-angle photography before shipment.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days after dispatch via freight carrier.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit sent before payment.
Do I need my VIN?
Strongly recommended for exact-fit matching. Chevy transmissions vary significantly by trim, body style, and year.
What if I do not approve the photos?
Every dollar back. No restocking fees, no return freight charges.
Why cheaper than dealer new?
Used OEM from low-mileage donors. Same Chevy engineering, fraction of the cost.
Every Chevy transmission we ship has been through these six steps:
1. VIN-Matching
We match the donor VIN to your VIN to confirm transmission code, drivetrain, and 2WD/4WD configuration.
2. Tested & Verified
ASE-certified technicians Shift-Test every gear under load. Transmissions are checked for clean engagement, no slipping, no abnormal noises.
3. Noise & Smoke Verification
Units are run to verify normal mechanical sound and clean operation — catches internal wear static tests miss.
4. Visual Inspection
Every accessible component is inspected: bell housing, output shaft, solenoid pack, cooler lines, sensor harnesses.
5. Photograph & Catalog
Multi-angle photos sent to you BEFORE we ship for your approval.
6. Palletize & Ship
Strapped on a heavy-duty wooden pallet, shipped via freight at no charge.
What Our Customers Say
5.0 ★ on Google · 4.8 ★ on Trustpilot. Real reviews from our Trustpilot profile.
★★★★★
Verified Trustpilot
Repeat customer
"AutoPowerSource is a great company. I've used them several times for used motors. Low mileage when other companies just gave up."
— Curtis Haines, 2025-12-23
★★★★★
Verified Trustpilot
Responsive and helpful
"Responsive and helpful through the process of purchasing an engine"
— Corey, 2025-10-27
★★★★★
Verified Trustpilot
Jeep Commander engine
"Extraordinary experience from payment to delivery. I am back on the road. Communication was excellent."
— John Williams, 2025-10-26
★★★★★
Verified Trustpilot
Very professional
"Very professional and secure of what you doing"
— Roberto Villatoro, 2026-05-12
Our Photos-Before-Shipment Guarantee
Before any transmission leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and up to 3-year warranty. Have a question about the guarantee or your specific order?