Can I also have the parts installed?

We have a workshop where we can provide installation for many parts, such as drivetrain, limited-slip differentials, clutches, suspension, and wheel alignment.

Is the stock shown in the webshop accurate?

Yes, our stock indicates local inventory in Kruiningen. We also have this page with average delivery times for backorder products: https://www.motorsportparts.nl/voorraad/

How long does a differential or transfer case rebuild take?

The majority of rebuilds take 1 working day. For larger jobs requiring CNC work, we will provide an estimated time per case.

Is shipping outside the Netherlands or Europe possible?

Yes, we ship worldwide at competitive rates. Please contact us for a custom quote.

Is your differential not listed in the webshop yet?

We rebuild many brands. If yours isn't listed, please contact us for conditions and a cost estimate.

Will my order be shipped today?

DHL pickup is daily around 15:00. Orders received before 13:00 that are in stock are usually included.

Can a limited-slip differential be adjusted or tuned?

Yes, we can modify and tune almost any LSD. We are the leading specialist in Europe for tuning OS Giken Superlocks, building competition-winning setups for street, rally, drift, and off-road use.

Overview

Tran-X Sierra 7” Crownwheel & Pinion Kit

Name: Tran-X Sierra 7” Crownwheel & Pinion Kit
Brand: Quaife
Price: 580.57 EUR
Availability: InStock

€580,57

Price excluding VAT: €479,81

Our stock:

0 Items

Item No.:

TRF56Z

SKU:

Tran-X Sierra 7” Crownwheel & Pinion Kit

Stock update 10-06-2026: In stock at supplier, approx. 1 week delivery.

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Tran-X Sierra 7” Crownwheel & Pinion Kit — high-quality Quaife product for motorsport and road use.

Performance Crownwheel & Pinion Kits

In a front-engined, rear wheel drive application, the crownwheel and pinion (CWP) transfers engine torque from the propshaft to the car’s differential (LSD) and then to the road wheels via the drive (half) shafts. As a function of this process the crownwheel and pinion ratio is the principal variable controlling the overall gearing, which means that changing it has a significant effect on vehicle performance.

It is extremely important to tailor the CWP ratio to the engine characteristics and desired vehicle speed, whether it is for a road based trackday car or an outright competition vehicle that requires fine tuning from circuit to circuit. This is why Quaife Engineering has made a wide range of Tran-X CWP ratio sets available.