Triumph Stag Wheel & Pinion Gear Sets

Michelotti’s classic Triumph Stag Convertible was conceived in 1964 as a motor show special. The production model was produced, after a long gestation period, in which it gained the trademark T-bar, from 1970 until 1977 more…
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Frequently Asked Questions

What is the function of the wheel and pinion in a Triumph Stag?

The wheel and pinion are crucial components of the Triumph Stag’s differential. They work together to transfer power from the driveshaft to the wheels, allowing the vehicle to move smoothly. The pinion gear engages with the crown wheel to ensure even power distribution and exemplary smooth running, which is essential for maintaining the vehicle’s performance and handling.

How do I know if my Triumph Stag’s pinion or differential gears are worn?

Signs of worn pinion or differential gears in your Triumph Stag include unusual noises such as whining or grinding, vibrations while driving, or difficulty in turning. These symptoms can indicate that the gears are not meshing correctly, which could lead to premature wear. It’s important to regularly inspect these highly stressed components for any signs of damage or wear.

What gear ratio options are available for the Triumph Stag differential?

The Triumph Stag offers various gear ratio options for its differential, allowing for customisation based on driving preferences. Common ratios include 3.66:1 and 3.7:1. These ratios impact the vehicle’s acceleration and top speed, and selecting the right one can significantly enhance your driving experience.

Can I replace just the pinion, or do I need to replace the ring gear as well?

When replacing the pinion in a Triumph Stag, it’s recommended to replace the ring gear or crown wheel as well. This is because the pinion and crown wheel are manufactured as matched pairs to ensure precise reproduction and smooth running. Replacing them together helps maintain the original part’s performance and prevents issues related to noise patterns or improper fit.