Experienced transmission repair, close to Shoreline
Good transmission shops are harder to find than they used to be. KC Martin has been doing this work for decades, with mechanics specifically trained in transmission repair, and we’re a short trip up I-5 or Aurora from Shoreline.
High miles and unknown history
Many of the cars we see from Shoreline have been on the road a while, and plenty were bought used. That raises a common question: has the transmission fluid ever been changed?
If you don’t know, we can usually tell. The color and smell of the fluid say a lot about how the transmission has been treated and what it needs next. On a higher-mileage car, a fluid service at the right time can add years. We’ll give you a straight answer about whether yours is a good candidate.


Symptoms worth a call
- Slipping, or revs that rise without the car speeding up
- Hard, late or jerky shifts
- A clunk going into drive or reverse
- Red fluid under the car
- A burning smell
- Grinding on a manual
What we do
We handle both manual and automatic transmission repairs and maintenance, and the connected systems too.
- Fluid service and leak repair
- Automatic transmission repairs and rebuilds
- Manual transmission and clutch repair
- Differential service and repair
- Replacements for cars and trucks
No pressure, no surprises
If you have any trouble with your vehicle, bring it by. We’ll inspect it and let you know what repairs are needed and what it will cost. We’d love to meet you and give you an accurate estimate to get you back on the road.
Dropping off is simple: the key drop box is available before we open and after we close.
The complete list of what we service is on our main transmission repair page.
