We have a significant amount of experience building gearboxes and parts for road, race or rally Austin Healeys. Our range includes parts for side change and centre change gearboxes. We have invested heavily in CAD/CAM design and manufacturing alowing us to increase the range of products we offer. With the recent introduction of our centre change gearboxes cases we have now completed the puzzle to allow us to build brand new gearboxes. In addition we also offer a range of gearboxes from stock for outright purchase, no exchange required. Different gearsets are available including: helical and straight-cut gears, TULIP and SEBRING ratios.

As well as parts we can also offer customers a rebuild service. Why not let the Healey experts build your gearbox?

Gearbox

Show:

BRASS BAULK RINGS

At last now available after exhaustive testing we are satisfied these will cure your synchro problems. CNC machined in the UK to our specification.

Gearbox
Code: CGBS130
Sku: CGBS130
Availability: In Stock
CGBS130
£59.99
Qty
Code: CGBS140
Sku: CGBS140
Availability: In Stock
CGBS140
£59.99
Qty

STEEL BAULK RINGS

Another product developed and produced by Denis Welch Motorsport. At last now available after extensive testing we are satisfied these will cure your synchro problems. CNC machined in the UK to our specifications with the aid of original BMC drawings.

Gearbox
Code: GBC141
Sku: GBC141
Availability: In Stock
GBC141
£59.50
Qty
Code: GBC131
Sku: GBC131
Availability: In Stock
GBC131
£59.50
Qty

HEAVY DUTY GEAR STICKS

Made from stronger steel and a direct replacement for standard. Finished in Bare Metal or Chrome Plated.

Supplied unplated for maximum strenght.

Now available - BN4 Bare Metal and BN4 Chrome Plated.

Gearbox
Code: GBS109
Sku: GBS109
Availability: In Stock
GBS109
£105.00
Qty
Code: GBS109C
Sku: GBS109C
Availability: In Stock
GBS109C
£135.00
Qty
Code: GBS109A
Sku: GBS109A
Availability: In Stock
GBS109A
£105.00
Qty
Code: GBS109AC
Sku: GBS109AC
Availability: In Stock
GBS109AC
£135.00
Qty
Code: GBC109
Sku: GBC109
Availability: In Stock
GBC109
£80.00
Qty
Code: GBC109C
Sku: GBC109C
Availability: In Stock
GBC109C
£105.00
Qty
Code: GBC109E
Sku: GBC109E
Availability: In Stock
GBC109E
£80.00
Qty
Code: GBC109EC
Sku: GBC109EC
Availability: In Stock
GBC109EC
£105.00
Qty

BRASS GEAR LEVER BUSH

CNC machined to exacting standard from our own drawings in the correct hard wearing grade of bronze.

Gearbox
Code: GBS104
Sku: GBS104
Availability: In Stock
GBS104
£12.25
Qty

GEAR LEVER SHOES

Reproduction of the original side or centre change items.

Gearbox
Code: GBS113A
Sku: GBS113A
Availability: In Stock
GBS113A
£165.00
Qty
Code: GBC113E
Sku: GBC113E
Availability: In Stock
GBC113E
£49.50
Qty
Code: GBC113L
Sku: GBC113L
Availability: In Stock
GBC113L
£49.50
Qty

GEAR STICK LOCATING BOLTS

Gear stick locating bolts - reproduction of the originals, with correct heat treatment to last as they should.

Gearbox
Code: GBS105
Sku: GBS105
Availability: In Stock
GBS105
£8.95
Qty
Code: GBC105A
Sku: GBC105A
Availability: In Stock
GBC105A
£5.95
Qty

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.

Gearbox
Code: CELS123
Sku: CELS123
Availability: In Stock
CELS123
£49.50
Qty

Replacement Parts

Code: CELS123S
Sku: CELS123S
Availability: In Stock
CELS123S
£16.95
Qty

STRAIGHT CUT GEAR SETS

Available in two ratios:
- Tulip, the original works rally ratios, having a large jump between 3rd and 4th gear, therefore needing a 22% overdrive to split the gap and effectively creating a 6 speed gearbox.
- Sebring which are similar to the works sebring race ratios, having a higher first gear with a close gap between all the gears, therefore only needing the overdrive on top to create a 5 speed gearbox. Today most people prefer the Sebring ratios as they are less confusing in a heated situation.

They are both manufactured solely for us with Molybdenum coated synchro cones to improve the synchromesh, giving a smoother and faster gear selection. These must run with BJ8 steel baulk rings. They are designed to run on a BJ8 main shaft and layshaft which can be installed into an earlier side or centre change gearbox (except BN1) with slight modifications to the centre case.

Gearbox
Code: CGBS301
Sku: CGBS301
Availability: In Stock
CGBS301
£1,495.00
Qty
Code: CGBS301S
Sku: CGBS301S
Availability: In Stock
CGBS301S
£1,950.00
Qty

Attachments

Healey gear ratios.pdf Healey gear ratios.pdf View Download

REVERSE GEARS

Our Reverse Gears for Austin Healey BN1 3-Speed are now available direct from stock. These have been previously unavailable for an extended period of time and as such are very difficult to come by. We have CAD designed these with the aid of the original BMC drawings to exact specifications and they have been exclusively manufactured for us in the UK.

At the same time we have manufactured and stock Reverse Gears to suit BN2-BJ8 side and centre change (GBS189) from our own CAD drawings and specifications, so you can rest assured of the quality, fit and performance.

We also stock a BN1 Layshaft (GBT106) and a full range of bearings.

Gearbox
Code: GBS189A
Sku: GBS189A
Availability: In Stock
GBS189A
£86.95
Qty
Code: GBT120
Sku: GBT120
Availability: In Stock
GBT120
£97.85
Qty
Code: GBS189
Sku: GBS189
Availability: In Stock
GBS189
£86.95
Qty

REVERSE GATE

LHD or RHD this item stops the accidental engagement of reverse often encountered during competition.

Gearbox
Code: CGBC102G
Sku: CGBC102G
Availability: In Stock
CGBC102G
£47.50
Qty
Code: CGBS102G
Sku: CGBS102G
Availability: In Stock
CGBS102G
£47.50
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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