Ring & Pinion


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

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Our ring gears come lapped and mated to it's individual pinion when kitted.  Ring and pinions are manufactured so they have a fixed mounting distance.  Using this technique eliminates the need for pinion adjustments.  It's the larger 10" ring and pinion set that makes the MD4 transaxles (4E or 2D) much stronger than VW transaxles which uses an 8" ring gear.  In the last couple years we have started recommending the use of Weddle racing gears in all our products to provide the best durability.  Weddle gear have been long known in the racing world for high performance and durability.

Weddle ring and pinion gears offer the Klingelnberg Palloid System in their manufacturing process, the best available for strength and durability.  This is that you'll want for a long lasting transaxle.

The Klingelnberg Advantage:

Klingelnberg Palloid gears sets are used in many demanding fields of applications, including stationary gearboxes for high tech machinery and in automotive applications where large amounts of torque and shock loading must be delivered through the gearbox and differential section.  This is because the Klingelnberg Palloid design offers some significant advantages that justify the higher productions costs.  Some of these advantages include:

Strength:  Klingelnberg Palloid gears have a parallel slot with, which allows a fully rounded root region with the maximum possible root radii.  This greatly improves resistance to bending stress and tooth fatigue.  The small radius of the lengthwise curvature of the teeth and the high tooth contact ration provided by the unique hobbing motion of this system significantly increases the load carrying capacity of the gear set while the true involute tooth form makes Klingelnberg Palloid gears less sensitive to gearbox and shaft deflections (case flex and shaft flex).  In addition, it is possible to design gears with increased helix angle when necessary for certain applications.  Since it's inception, low sensitivity to deflection and high break-point capabilities have established this method as an effective means of preventing failures in highly stressed gearbox assemblies.  In some applications,  Klingelnberg Palloid gear sets can provide up to 25% more strength in the same size package.

Accuracy:  Teeth are generated purely by rolling motion of the hobs, which insures a high degree of tooth form accuracy.   The generating process is theoretically exact and calculations of the tooth shape is relatively simple compared to the cutter head generated designs.  Even under high volume production conditions, the combinations of continuous indexing and a single-lead hob results in very accurate tooth forms.

Long Gear Life:  The Klingelnberg Palloid method results in extremely smooth running gear sets.  The unique hobbing process provides a slightly scaly surface structure, which provides excellent lapping conditions, provides an oil pocket effect and enhances the inherent smooth rolling motion of the gear teeth.  These features, combined with a high tooth contact ratio, insure a long service life.

Quiet Operation:  A combination of factors, including a high degree of tooth form accuracy, a high tooth contact ratio, and the fact that involute tooth forms are relatively insensitive to deflections and mislocations during final assembly of the gearbox, insure that Klingelnberg Palloid gear sets exhibit extremely good noise behavior, even when conditions are not ideal.

Weddle ring and pinion gears are available for all Mendeola transaxles, including the S4, S4D (11.5" ring gear), S5, S5D (11.5" ring gear), and MD4E.



California Performance   - Temecula, CA  951- 699-8898
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