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T5 World Class Synchro Kit 1st - 5th - Genuine Tremec - One Only
T5 World Class Synchro Kit 1st - 5th - Genuine Tremec - One Only
SKU:T5-SYNCHROKIT-GEN
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- Held in stock in Perth
- Dispatched in 1-3 business days
- Advice from the people who rebuild them
We stock World Class T5 parts in Australia. This is our own stock, sitting on our shelf in Perth — not a supplier drop-ship. If it is listed, we have it.
Genuine Tremec T5 World Class Synchro Kit - 1st to 5th
One kit only. When it sells we do not expect to have another.
Genuine Tremec synchro rings for the World Class T5 have not been in normal supply for years. This is a complete set, 1st through 5th, in original Tremec specification - not a reproduction and not an equivalent. We found one. We do not expect to find a second.
What is in the kit
- 1st and 2nd gear blocking rings
- 3rd and 4th gear blocking rings
- 5th gear blocking ring
Who this is for
If you are doing an original-specification restoration, or you want the box to shift exactly the way it did when the car was new, genuine rings are the only way to get there. That is what you are paying for - not more performance, but originality that cannot be sourced any more.
For a normal rebuild, or anything that gets driven hard, our carbon synchro kit is the better buy and always in stock. It is built to a higher specification than these rings and costs less.
New rings will not fix it on the wrong oil
A synchro has to grab. ATF carries the friction modifiers that let it do that - gear oil is formulated to keep surfaces apart, so the rings slip instead. Fit a fresh set of synchros, fill the box with 75W90, and it will still crunch.
Here is why a T5 takes ATF, and we stock the right fluid to go with it.
While the box is apart
Synchro rings wear alongside the shift keys and sliders that push them. Worth checking the shift keys and springs and the 1st / 2nd slider while you have it on the bench.
Applications
Suits World Class T5 - Ford, Holden, TVR and Sierra Cosworth.
Held in stock in Perth, Western Australia. Questions before you commit? Give us a call - Mike has been rebuilding these boxes for over twenty years.

Why buy your T5 parts from Racing Solutions
We rebuild World Class T5 gearboxes in house, and we stock the parts to do it. The part you are ordering is one we fit ourselves, held on our own shelf in Perth — not ordered in from overseas after you pay.
That is one of our own performance gearsets mid-rebuild. Over 20 years of hands-on trade experience sits behind every part we list and every bit of advice we give.
T5 buying information
Does this fit my T5?
Almost certainly, yes. Our World Class T5 parts suit the T5 as fitted to Australian-delivered Ford Falcons — XF, XG, XH, EA, EB, ED, EF, EL, AU and BA, in both six-cylinder and V8 — and Holden Commodore VN through VS, six-cylinder and V8. They also suit TVR and Sierra Cosworth T5 applications.
The one exception is the input shaft pocket bearing. Two types were fitted to the World Class T5 and they are not interchangeable, so that is the one thing worth checking before you order. Here is how to identify yours in two minutes.
Still not sure? Tell us the car, the engine and what the box is doing and we will confirm it before you buy. If it is already apart, send a photo.
Stock and availability
We hold World Class T5 parts in stock in Perth. If a part is listed on the site, it is on the shelf.
Parts that are out of stock are taken off the site rather than left listed, so you will not order something and then be told it is on back order.
Gearsets are the exception — allow around a week for dispatch on those.
Dispatch and delivery
Orders are processed within 1 to 3 business days and posted from Perth, Western Australia.
Shipping is charged on the weight of your order, so small parts ship cheaply and you are not paying a flat rate for a seal.
Heavy items such as gearsets go by standard post only. If you need one urgently, get in touch and we will quote express.
Returns
If a part is not right, get in touch and we will sort it out. Full terms are on our refund policy page.
Rebuild services carry a 90 day warranty on workmanship.
Would you rather we rebuilt it?
We rebuild World Class T5 gearboxes to order. Send us the box, we strip and assess it, then quote you on standard and modified options before any work starts.
Usually 3 to 4 weeks from the arrival of your transmission. Call 0458 998 395 or see the T5 rebuild service.
Not sure which part you need?
T5s vary between World Class and non World Class, and between Ford and GM applications, so the same job can take different parts depending on what you have.
Tell us the car, the engine and what the box is doing, and we will confirm the right part before you buy. Send a photo if it is already apart.
If you are ordering a rebuild kit, see how to identify your input shaft pocket bearing.