Transaxle Selection


Mendeola Products
MD4-2D  4 speed transaxle
MD4E   4 speed transaxle

MD5-2D 5 speed transaxle
S4 Sequential shift 4spd
S4D, Durable Sequential 4spd
S5, Sequential 5spd
S5D, Durable Sequential 4spd
HD4 Heavy Duty 4spd Sequential
Gear Ratio Calculator

U-Joint Axles- Disclaimer
Shift Linkage Adjusting

MD4-2D Main bearing support
Clutch linkage upgrade, Stage 2/3
CV Tips
CV Assembly
CV Clocking
Grease Needle

VW Transaxles
VW Bus 091, 002, Type 1

Mendeola components
MD Case
MD4 Ring Gear
MD4 Carrier
MD4-2D Pinion Gear
MD4E Pinion Gear
MD5 Pinion Gear
MD 930 CV stubs
MD 935 CV stubs

HD4 Carrier and end gear
HD4 Ring and Pinion
HD4 Case Front
HD4 Differential Case Side
S4 Case Front
S4 Differential Case Side

Sandrail Applications
Transaxle selection chart
2 seat mid-engine with S4

Links of interest
Raw Motorsports
Weddle Industries
DeJong Sandcars
Funco Motorsports
Kennedy Engineering
Master Shift
Mendeola Transaxles

Help us keep the sand dunes open,
join the American Sand Association


Picking the right transaxle is one of the most important decisions you can make when building your car.  You don't want to invest $50K into a car and have a transaxle your motor can break.  Careful consideration should be taken base on the horsepower, weight, and tire size of your car.  Below is a general guideline of Mendeola transaxle recommendations based on using a 30" tire height.  If you have a bigger tire size or heavier car than this chart supports, call us to discuss further.  We'll be glad to review what you need.
HP/Weight 1000-1500lbs 1500-2000lbs 2000-2500lbs 2500-3000lbs
up to 300HP MD4E MD4S-2D MD4S2D MD4S2D
300-500HP MD4S-2D MD4S-2D S4 S4
500-750HP S4 S4 S4 S4D
750-900HP S4D S4D S4D S4D

Some History

In the beginning there were dunebuggies, powered by VW, or bug motors, hence the name dune-buggy.  For many years VW transaxles could handle the HP from these motors, upwards of 300HP.  But in the mid 90's the popularity of 4 and 5 seat sandrails with long travel suspension created a huge demand for more horsepower.  Hence, people started putting higher performance water cooled motors into larger cars with well over 300HP.  Harnessing that horsepower in a VW transaxle became too much.  Applications with 300 to 500HP was simply beyond the capabilities of VW components and the best tricks to strengthen the transaxles.  Recognizing this demand, Mike Mendeola released the MD4 in 1997, now in it's second generation (2D).  It became an overnight success and today it's one of the most popular combinations in that power range.  The next range of 500 to 750HP was addressed with the S4, the most popular transaxle in this power range, shipping more transaxles than all other combined in the sand market.  You'll see Mendeola transaxles in all the best cars, simply because it's the best value for the money.

Desert Nirvana...

When you consider the lighter weight of a sandcar (1000 to 2800lbs) this high power to weight ratio can be very exhilarating.  Add that power to the new suspension technologies that have enabled a super plush ride and you've got absolute "desert nirvana" to experience "G-forces" like never before possible.  As you can guess this sequence of technology to quench the thirst of the sand dune maketplace has created a huge demand for Mendeola transaxle products to build reliable cars.  If you're building a super trick rail you should consider a Mendeola transaxle.


Worrying about breaking your transaxle with too much horsepower can be solved with a Mendeola transaxle.  And with hundreds of adapters from Kennedy Engineering you can put almost any engine into a sandrail and dune your brains out without the worry of breaking a gear if you select the right transaxle for your weight and horsepower requirements. 
California Performance   - Temecula, CA  951- 699-8898
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