Professional Transmission Rebuilding With Warranty
We fix, repair and rebuild automatic gearboxes to restore full strength and smooth shift quality. Backed by our 12 month or 12 thousand miles warranty.
What a rebuild involves
The unit is fully stripped. All friction, steels, bearings, seals, washers and bushes are examined. We ultrasonic clean reusable hard parts. We measure tolerances and end float. We replace worn or out of spec parts with quality components and upgrade weak points where proven. Valve body and mechatronic issues are addressed. Adaptions are reset and the unit is road tested under varied load.
When a rebuild is needed
- Slipping or flaring between gears
- Burnt or contaminated fluid
- No drive or harsh engagement
- Bearing noise or metal debris
- Internal pressure faults
Benefits vs replace
- Keep original casing and coding
- Lower cost than new unit
- Known quality parts used
- AA & RAC Approved Warranty backed workmanship
Why choose STA to rebuild
- Over 10,000+ transmissions rebuilt or repaired
- Hydra test and pressure verification
- Upgrades applied where failure patterns known
- Precise assembly and torque procedures
- 12 month or 12,000 mile warranty (whichever first)
Our 4 Step Rebuild Process
- 1
Inspect and Report
We take the unit apart, find the cause of the issue, and log all worn parts in detail.
- 2
Clean and Check
Every part is deep cleaned with care. We inspect fit, measure tolerances, and check condition.
- 3
Rebuild and Upgrade
We install new seals and frictions, and apply upgrades where needed for lasting performance.
- 4
Test and Protect
Adaptions are reset to factory spec. We road test fully and your rebuild is backed by warranty.
Built on reputation
Known locally for honest advice and consistent results. Our process restores confidence.
Gearbox Rebuild FAQ
How long does a rebuild take?
Typical turnaround 3-5 working days depending on parts and complexity.
Do you use genuine parts?
We use OEM, OE supplier or proven premium aftermarket parts based on availability and purpose.
Can you reinforce weak points?
Yes where known issues exist we apply design updates or stronger components.
Is fluid included?
Yes correct spec fluid and filter where serviceable are part of the rebuild quote.
Rebuild or keep driving?
Answer these quick questions to decide if delaying risks greater internal loss.
Are shifts slipping more often?
Increasing flare = heat + clutch debris. Rebuild now prevents converter & valve body collateral damage.
Is fluid already burnt?
Dark smell = friction breakdown. Waiting rarely reverses it; rebuild restores proper friction material.
Planning to keep the car?
Rebuild extends usable life & preserves resale vs selling with symptoms.
Need a trusted gearbox rebuild?
Act early to prevent further internal damage and higher cost.