Built in Wisconsin. Shipped nationwide.Talk to a specialist: 262-219-1453

AMPro • Transmission remanufacturer & specialist

Built by AMPro.
Tested by AMPro.
Supported by AMPro.

The Right Transmission. Built Right.
Delivered with Confidence.

From the workbench to application verification, AMPro brings transmission remanufacturing, testing and support together in our Wisconsin shop.

An AMPro builder working on a transmission at the workbench
Inside AMPro. Our people. Our work.

The people behind your transmission

We remanufacture the unit.
We support the customer.

AMPro is a transmission remanufacturer and specialist. Our work combines hands-on assembly with machining, valve-body and electronic capabilities, transmission testing, and application support. Customers work with the people behind the build.

From components to a completed build

How We Remanufacture

The work depends on the transmission family and application. The 6L80 examples below describe that documented build—not a universal parts list for every AMPro transmission.

Transmission components arranged on an AMPro workbench
Real components. Hands-on remanufacturing.
01

Disassembly & Inspection

Remanufacturing begins with disassembly and inspection of the transmission and its components. This work helps guide the preparation and rebuilding of the unit.

02

Cleaning & Preparation

Components are cleaned and prepared for the remanufacturing work that follows. Careful preparation supports the machining and assembly stages.

The AMPro remanufacturing shop and work areas
Remanufacturing work inside AMPro.
03

Machining & Updates

Machining and applicable updates are part of AMPro's remanufacturing capabilities.

Documented 6L80 examples
  • CNC-resurfaced bellhousing
  • CNC-resurfaced stator with updated non-rotating rings
  • Updated GM 1234 / 35R drum
  • TransGo OE PR & Boost Valve
  • TransGo Oversized AFL Valve when needed
Explore the AMPro 6L80 build →
An AMPro technician working on transmission components at the bench
Assembly and component work at the AMPro bench.
04

Valve Body & Electronic Testing

AMPro remanufactures TEHCMs in-house on applicable units. Valve bodies are dyno-tested.

6L80 example: The documented AMPro process includes an in-house remanufactured TEHCM, a dyno-tested valve body and new pressure switches.

05

Assembly

AMPro's transmission builders assemble the remanufactured unit for its application, bringing the prepared components and applicable updates together.

A transmission positioned on test equipment in the AMPro shop
Transmission testing equipment at AMPro.
06

Dyno Testing

AMPro's capabilities include transmission dyno testing. The documented AMPro 6L80 build is fully dyno-tested.

Testing supports our work as a transmission remanufacturer.

07

Programming & Application Verification

VIN programming is available where applicable. AMPro verifies the exact transmission application before shipment.

6L80 example: VIN programming with OEM GM software is included in the documented build.

Family identification alone does not guarantee interchangeability. Your vehicle's exact application matters.

Why AMPro

A transmission specialist behind your build.

Remanufactured by AMPro

Hands-on transmission remanufacturing in our Wisconsin shop.

OEM-level updates where applicable

Updates are considered for the relevant transmission family and application.

In-house valve-body & electronic capabilities

TEHCM remanufacturing on applicable units and valve-body dyno testing.

Dyno testing

Transmission testing capabilities alongside our remanufacturing work.

Programming & technical support

Programming where applicable, with AMPro support for your transmission application.

Nationwide shipping

AMPro transmissions can be shipped nationwide.

Direct AMPro warranty support

Claims are handled by AMPro rather than a third-party warranty administrator.

An AMPro team member in uniform inside the shop
Real people behind every AMPro build.

Who we serve

For the businesses and people keeping vehicles moving.

  • Repair Shops
  • Transmission Shops
  • Dealerships
  • Fleets
  • Automotive Businesses
  • Individual Vehicle Owners

Whether you're sourcing a transmission for a customer or your own vehicle, start with the application and build the right request with AMPro.

The Right Transmission. Built Right.

Let's start with your vehicle.

Exact transmission application verified by AMPro before shipment.