Slipping, jerking, or hard shifts? Get an accurate transmission diagnosis before a small issue becomes a major rebuild.
Your transmission is one of the most expensive components in your car — and most failures start as small, fixable symptoms like delayed engagement or rough shifts.
Blackstone diagnoses automatic and manual transmissions accurately, so you're not quoted a full rebuild when a fluid service or solenoid would fix it. From maintenance fluid exchanges to clutch jobs and major repairs, we give you honest options and back our work with a nationwide warranty.

Keeping you shifting smoothly for the long haul.
The #1 way to extend transmission life.
Find why it's slipping before it fails.
Targeted repairs that avoid full rebuilds.
Manual clutch replacement and adjustment.
Seals and gaskets to stop fluid loss.
When needed, done right and warrantied.

Don't ignore these — early action is far cheaper:
Nationwide TechNet warranty on parts & labor — covered even when you travel.
Factory-level training and dealer-grade tools for every make and model.
We never start work without your OK — clear written estimates, no surprises.
A complimentary digital inspection with photos comes with every visit.
Scan and road-test to confirm the real issue.
Service, repair, or rebuild — with honest pricing.
Proper fluid, parts, and procedures.
Road-tested and backed by our warranty.
A quick diagnosis now can save you from a costly rebuild later. Get it checked today.
Most manufacturers recommend every 30,000–60,000 miles, though severe driving (towing, stop-and-go) calls for more frequent service. Fresh fluid is the cheapest way to extend transmission life.
Not necessarily. Slipping can be caused by low or burnt fluid, a failing solenoid, or a valve-body issue — all far cheaper than a rebuild. We diagnose accurately so you only pay for what's actually needed.
It's risky — continuing to drive a slipping or overheating transmission usually accelerates the damage. Have it checked promptly to keep repair costs down.
Yes — we handle fluid services, diagnostics, clutch jobs, and repairs for both automatic and manual transmissions.
Rebuild vs. replace vs. a simple solenoid fix — and what each one really runs.
