Hewland Gearbox
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Hewland Gearbox Parts
and Service

Hewland components & reasonably priced service.

    With our first introduction to a Hewland transaxle in 1971, through the present, their bespoke racing components continue to be the backbone of the limited-production race car industry. Their success stems from the genius of their designs, and have provided a simplistic yet durable, power transmission system, requiring minimal attention and quick ratio alterations. All the while, providing the competitor with one of the more reliable assemblies on their vehicle.

     Compared to other components that make up a race car, detailed servicing of the Hewland gearbox is rather infrequent, and yet, very important. With the increasing loads of the modern racing vehicle placing a greater emphasis on the individual internal workings, their proper adjustments and the right parts are critical. 

    The Hewland name is synonymous with a foremost designed and engineered package, based on the sum total of it's parts. Servicing need not be expensive, nor should it be overlooked because it "still works". Keep in mind that many aftermarket parts are little better then a visual copy of the original design, without the engineering to support it.

     Although, there are many components that can be exchanged with a minimal amount of effort and normal support tools, these transaxles are best serviced by our professionals, with years of experience and the proper tools.

   We have proudly serviced many of the following transaxles for customers since our early days in racing. Hewland Mk6-8/9, Reynard cased Mk9, LD-200, FT200 and other Hewland-style copies. Blue-printing, re-casing, Carrier, CWP setups and repairing damage from inferior aftermarket gears or components.

For internal Hewland parts, gears, clutch rings and other gearbox related help, contact our sales staff and keep your original Hewland gearbox, Original.

Free!  
Now that I have your attention, this link will take you to the Hewland Engineering page that has a free, downloadable program, you can use to determine optimized ratios.
 Ratio Program

Techspeed
Because Hewland doesn't make one, we offer the Techspeed Racing  rear cover with integral mounts for wing supports on the Mk 6-8/9 series gearboxes. Now you can have a precision fit rear cover for mounting a wing support, without the distortion from welding.         

Part # 8N0692. 

Now in stock!
Techspeed Racing cast Magnesium rear cover with integral reinforced wing mounts, for the Hewland LD200 gearbox (4 speed only). Made to do the job right, without modifications! weight 715grams  
Part # 8N2490

Gearbox left hand side cover, for 1987 and newer Reynard cars utilizing the Reynard gearbox casting and Hewland Mk series gears, such as Formula Ford and F/ Ford 2000.  Web added for extra strength, Aluminum 
Part # 8N0696

Current Hewland Ratio List

LD 200 Mk8/9 Mk5

    !! one quart on gear change   * 1/4" (6.3MM) below right hand plug    # transmission without remote cooler