Close up of mechanic hands using a red oil pump can to lubricate friction discs and gear components during automatic transmission rotating clutch assembly
Transmission Repair in Eugene, Oregon

Transmission Replacement & Transmission Swaps in Eugene, Oregon

Wrench Automotive performs transmission replacement and transmission swaps for cars, trucks, work vans, and commercial vehicles. We start with a proper diagnosis before recommending any major transmission work, so you understand exactly what's going on.

Need your vehicle looked at sooner? Call us about current availability — we work to get vehicles diagnosed and repairs moving as quickly as our shop capacity allows.

An auto mechanic holds a new gear in his hands for installation in the gearbox. Checking the part, its integrity, and preparing for replacement.
Diagnosis First
Before any replacement, we find the real problem
Transmission Replacement & Swaps

Transmission Trouble Doesn't Always Mean Replacement

Slipping gears, odd shifts, grinding noises, or a transmission that won't engage can be worrying. But not every transmission concern means the whole unit needs to come out. The right first step is a proper diagnosis.

Wrench Automotive diagnoses the transmission before recommending anything. We explain what we found in plain language and lay out the honest options — whether that's a repair, a fluid service, or a full replacement — so you can make an informed decision.

When a replacement is the right call, we handle the transmission removal and replacement completely, and test the vehicle before it goes home.

Warning Signs

Common Transmission Problem Symptoms

These symptoms can point to transmission trouble. Many have more fixable causes, which is exactly why a thorough diagnosis matters.

Slipping Gears

The engine revs but the vehicle doesn't accelerate as it should, or it feels like gears are slipping.

Harsh or Delayed Shifts

Rough, jerky, or delayed gear changes can indicate internal transmission problems.

Grinding or Whining Noises

Unusual transmission noises during shifting or driving deserve a professional look.

Fluid Leaks

Red fluid under the vehicle can signal a transmission leak that needs attention.

Transmission Overheating

A transmission running too hot can lead to serious internal damage over time.

Transmission Warning Light

A transmission or check-engine light can be an early sign that something needs attention.

Not Sure What Your Transmission Needs?

Call us about your symptoms. We'll help you understand what may be going on and get your vehicle scheduled for diagnosis as quickly as our shop capacity allows.

Call or Text (541) 232-4678
Transmission Work We Handle

Replacement & Swaps for Most Vehicles

We handle transmission replacement and swaps across a wide range of vehicles, including the kinds of commercial work others often turn away.

  • Passenger cars — domestic, Asian & European
  • Pickup trucks & heavy-duty trucks
  • Work vans — Sprinter, Transit & ProMaster
  • Commercial & fleet vehicles

What to Expect When You Contact Wrench

1

Describe the Problem

Call or text us with the symptoms you're noticing. We'll give you honest guidance on next steps.

2

Proper Diagnosis

We diagnose the transmission and confirm what's really going on before recommending any major work.

3

Clear Options & Honest Advice

We explain your options based on the vehicle, its value, and what makes sense for you.

4

Replacement & Testing

If replacement is the right call, we do the work and test the vehicle before it goes back on the road.

Transmission Replacement Questions

Transmission Replacement FAQs

Straightforward answers to common questions about transmission replacement and transmission swaps.