Many Austin Healey cars were fitted with an overdrive, an electro-mechanical extra gear which can be engaged at the flick of a switch to aid lower rev cruising or to provide 'additional' ratios on 3rd and 4th gear in competiton environments.

We offer a range of overdrive components and also complete overdrive units available for outright sale, no exhange required.

Overdrive

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OVERDRIVE CLUTCH BRAKE RING

A reproduction of the original in cast iron, as the original with precise control of the cone angle and surface finish to help avoid problems with the sliding member sticking.

Overdrive
Code: OVD101
Sku: OVD101
Availability: In Stock
OVD101
£165.00
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OVERDRIVE CLUTCH SLIDING MEMBERS

Made from thick heavy duty material with the fast road riveted and race bonded and riveted.

Both exchange.

Overdrive
Code: COVD107
Sku: COVD107
Availability: In Stock
COVD107
£112.50
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Code: COVD107R
Sku: COVD107R
Availability: In Stock
COVD107R
£125.00
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STUDS

Simple but necessary items.

Overdrive
Code: OVD220S
Sku: OVD220S
Availability: In Stock
OVD220S
£2.12
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Code: OVD147S
Sku: OVD147S
Availability: In Stock
OVD147S
£1.95
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Code: GBC200
Sku: GBC200
Availability: In Stock
GBC200
£1.50
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OVERDRIVE TAIL HOUSING

A higher grade reproduction of the original to replace those with warped gasket faces or broken off tie bar mountings.
Direct replacement for original.

Overdrive
Code: OVD220
Sku: OVD220
Availability: In Stock
OVD220
£265.00
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UP-RATED OVERDRIVE ACCUMULATOR PISTON AND SPRINGS

Considerably larger than standard, these accumulate a much larger volume of oil so the overdrive will operate quicker when engaged.

Two types available, the larger "works" 1 3/4" diameter accumulator piston and the two heavier springs should always be fitted together as a pair. These suit all overdrives except the late BJ8 with a stepped case. This model uses the 1 1/2" dia. kit which comes complete with piston, springs and sleeve.

 

Overdrive
Code: COVD202A
Sku: COVD202A
Availability: In Stock
COVD202A
£69.50
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Code: COVD205
Sku: COVD205
Availability: In Stock
COVD205
£18.95
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Code: COVD204
Sku: COVD204
Availability: In Stock
COVD204
£147.92
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Replacement Parts

Code: COVD203
Sku: COVD203
Availability: In Stock
COVD203
£44.50
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WORKS TYPE GEAR LEVER KNOB

This Gear Lever Knob is made in aluminium and has a built-in switch to control the overdrive. This enables you to change gear and operate the overdrive all with one hand. Polished finish.

Overdrive
Code: CELS123
Sku: CELS123
Availability: In Stock
CELS123
£37.50
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Replacement Parts

Code: CELS123S
Sku: CELS123S
Availability: In Stock
CELS123S
£12.95
Qty

A Little About Us...

Company Info

Welcome to the Denis Welch Motorsport website for Performance Parts. We cater for every aspect of work on your classic car be it road, race or rally, using our unrivalled success in many aspects of Motorsport to make your car as successful and reliable as possible.

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Contact Details

Parts Hotline +44(0)1543 472244
Office +44(0)1543 472214
Fax +44(0)1543 472339
E-Mail sales@bighealey.co.uk
 

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