Samsonas Motorsport Dogbox Kit, BMW E30 M3

The Samsonas Motorsport E30 M3 Dogbox Gearkit is designed to fit into the original E30 Getrag 265 Housing. This gearkit features a new surface and profile big teeth, as well as a clutch shaft made from special driveshaft steel. 

With straight cut gears, racers will notice minimum rolling resistance. Each Samsonas gearbox features super finished, shot-peened gears and internals for optimal quality, and all selectors, shifting fingers, protections, forks, and rods are made from billet steel for maximum reliability. 

These gearboxes are suitable for:

• Rally
• Endurance Racing
• Time Attack
• Rallycross
• Circuit
• Hill Climb

5-Speed Group A Touring Gearkit Ratios

I     2,336     36/16

II     1,682     34/21

III     1,358     34/26

IV     1,149     31/28

V     1,000     -

C     1,038     27/26

6-Speed Group A Rally Gearkit Ratios

I     2,449     32/15

II     1,913     30/18

III     1,579     33/24

IV     1,332     29/25

V     1,148     24/24

VI     1,000     -

R     2,448     32/15

C     1,148     31/27

6-Speed Non-Homologated Ratios

I     2,615

II     1,938

III     1,563

IV     1,316

V     1,136

VI     1,000