3 D Transmissions

The South's Leading Gearbox Specialist

Unit 2 I O Trade Centre, Tilehurst, Reading, RG30 6AZ Directions

   Now closed Open Friday 08:30 - 18:00

Why Choose Us?

Extensive Range
First Class Service
Enviable Reputation

Business overview

We have an Excellent Reputation in Offering Excellent Workmanship and Highly Skilled Manual Gearbox and Automatic Gearbox Servicing & Repairs and Gearbox Reconditioning.

Established since 1981, Three D Transmissions, have grown to become the largest Gearbox reconditioners in the south east,boasting 10,000 square feet of workshop and parts department,and fully trained gearbox technicians. Our extensive customer base ranges from the general public, main car dealers, Police & Ambulance Authorities to Warranty Companies. Visit our Reading workshop to see the range of products we have in store. Whether you are looking to repair your car or improve its performance we will find the right product for you.

Our reputation has been built on the excellence of our service and the quality of our goods. Our replacement and reconditioned gearboxes come with a minimum 12 month and / or 12,000 mile warranty.

As well as supplying the best transmission equipment available, we offer our customers convenience and excellent service.

Our delivery service is available across the Thames Valley and throughout the South East.

We offer recovery, with collection and delivery for major rebuilds as part of our excellent customer service.



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garage front

Products & Services

reconditioned automatic transmission

reconditioned power shift gearboxes

reconditioned power shift transmission

fast fit clutch fitting service

clutch flywheel replacement

semi automatic gearbox

reconditioned gear actuator clutch actuator

gearbox servicing

gearboxes fitted

automatic gear boxes


auto gearboxes

manual gearboxes

gearbox repairs

automatic gearbox repairs

diagnostic transmission faults

reconditioned dsg gearboxes

haldex differential

rear axles

transfer box repairs

x drive transfer box

mechatronic repair

Brakes and Clutches

transmission electronic diagnostics

automatic gearbox diagnostics

light Commercial gearbox Repairs

reconditioned light commercial semi autos

rear differentials

rear diffs

haldex diff

c v t gearbox

automatic cvt gearbox

reconditioned gearbox

reconditioned mechatronic

reconditioned valve body

dual mass flywheel

reconditioned torque converter

transmission oil

automatic gearbox additives

hybrid gearboxes


Best place to help !

Amazing place , they are so helpful ! Lovely people and really fast I would 1000% recommend this place
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VW Golf Auto gearbox

I read other reviews and this influenced my decision to make contact. I’m extremely happy that I did . The price was less than half the quoted from VW. The service was fantastic my car is driving smoothly and silent. 100% recommend .
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Refurbished Volvo gearbox

Just refurbished my geartronic gearbox on my volvo S60 as its 15 years old it was touch and go if it was worth it,but car is in very good condition. Now very happy i did car drives like new hopefully many more miles to go.
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Outstanding and an amazing timely service. Thank you

We were very impressed with the staff and their sensible communications. We had given them a tight timescale for the job and they passed with flying colours. We definitely use them again if we need to.
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A very happy customer

I had a problem with my Bmw 7 series Drivetrain speed which appeared on my dashboard. After having it checked at the main dealer and also leaving it with another garage for 4 weeks, I was getting nowhere. Finally I was recommended 3D transmission and you can imagine how nervous I was when I went there. They where very professional and very friendly which helped alot. The communication was very good and they noticed that I was worried so said I could call anytime and also go round which I did. I was very happy with the work. I got feedback every other day and my car got fixed in no time at all. Highly recommend 3D transmission, very friendly and professional.
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