RV6 FK8 Upgraded Helical 4th Gear
Specifications Part numbers, fitment codes and shipping
- Brand
- RV6
- Speedzone SKU
- FK8_4TH_GEAR
- Manufacturer part number
- FK8_4TH_GEAR
- Category
- Transmission Components
- Shipping weight
- 3.0 lb
Originally developed for endurance racing teams. The RV6 FK8 helical 4th gear is finally available to the public. We have spent the last 3 years testing and refining the design and materials to take the abuse. These gears feature an extremely strong helical profile with more contact area. The lower tooth count and larger teeth allows these gears to handle more torque and shock load. As most of you know 4th gear is the weak link in the FK8 transmission. It is usually the first failure point in high power applications.
Features:
-Ratio 1.176:1 (STOCK 1.125:1)
-FEA design and optimization
-REM Polished
-Fully machined billet
-Case hardened for wear resistance and toughness

Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
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Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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