Cv Joint Race, Race Prepped For 930 CV with .875 Balls, Ea

OVERVIEW

In the world of off-road racing and high-performance sand rails, the old saying holds true: You can''t win if you don''t finish. The CV joint is often the weakest link in a long-travel suspension system, subjected to massive torque loads and extreme angles that would shatter a standard street component in seconds. This EMPI Race-Prepped CV Joint Race is engineered specifically to eliminate those failure points. Designed for the iconic 930 (108mm) CV joint, this inner race is manufactured from high-strength, hardened chromoly steel to withstand the brutal environment of desert racing, rock crawling, and aggressive trail riding. Whether you are piloting a Class 1 racer or a weekend warrior Baja Bug, this race provides the structural integrity needed to keep your axles spinning when the terrain gets nasty.

What sets this particular race apart is the meticulous "Race Prepping" process. Unlike standard "out of the box" races that may have tight tolerances unsuitable for high-angle travel, these components feature extra clearancing. This "looser" fit is a deliberate design choice by EMPI to prevent the CV joint from binding or "locking up" when your suspension is at full droop or maximum compression. By clearancing the race for use with .875-inch balls, we ensure that friction is minimized and heat buildupthe silent killer of CV jointsis kept under control. This race is designed to work seamlessly with original Lobro or EMPI cages, providing a professional-grade solution for builders who demand the highest levels of reliability and performance from their drivetrain.

FITMENT

This race-prepped 930 CV inner race is a universal high-performance component designed for VW-based off-road transaxle setups. It is compatible with the following applications and vehicles utilizing 930-style (108mm) CV joints:

• Sand Rails & Dune Buggies: All custom-built frames utilizing 002, 091, or Mendeola transaxles converted for 930 CVs.
• Baja Bugs: Specifically for modified Volkswagen Beetles running long-travel rear suspension kits and 930 stub axles.
• Class 1, 5, 10, & 1600 Racers: Competitive off-road racing vehicles requiring race-hardened drivetrain components.
• Manx-Style Buggies: High-horsepower street and dirt builds using upgraded 108mm CV flanges.
• Custom Off-Road Projects: Any vehicle utilizing a 28-spline axle shaft designed for the 930 CV interface.

SPECS

Every dimension of this race is optimized for the rigors of off-road abuse. Below are the technical specifications for the EMPI 16-2635-0:

• CV Series: 930 (Porsche Style 108mm).
• Ball Bearing Size: .875-Inch (7/8") - Required for proper fitment.
• Spline Count: 28-Spline (Internal).
• Material: High-Grade Hardened Chromoly Steel.
• Preparation: Race-Prepped with extra clearancing for high-angle articulation.
• Compatibility: Fits EMPI and Lobro 930 CV Cages.
• Finish: Precision ground and polished bearing surfaces.
• Quantity: Sold Individually (Each).

PRO TIPS

PRO TIP 1: Proper Lubrication is Non-Negotiable. When assembling your 930 CV joint with this race-prepped inner race, never use standard "all-purpose" grease. You must use a high-content Molybdenum Disulfide (Moly) grease specifically formulated for high-temperature, high-pressure racing applications. We recommend packing the joint thoroughly, ensuring the grease is forced into the cage windows and around the .875-inch balls. This reduces the friction generated by the "looser" race-prepped fitment and significantly extends the life of the component under heavy racing loads.

PRO TIP 2: Mind the "Clocking" During Assembly. One of the most common mistakes when rebuilding a 930 CV is improper phasing or "clocking" of the inner race to the outer cage. Ensure that the wide lands of the inner race are aligned with the narrow windows of the outer cage. If you assemble them incorrectly, the joint will not articulate properly and will likely bind or break the moment you put the vehicle in gear. Double-check that the joint moves freely through its entire range of motion by hand before installing the axle boot and bolting it to the flange.

PRO TIP 3: Routine Inspection for Pitting and Galling. Because race-prepped components are designed for extreme environments, they should be part of your "pre-race" or seasonal maintenance checklist. Always clean the joint completely in a parts washer to inspect the race surfaces. Look for "pitting" (small craters) or "galling" (smeared metal) on the race tracks where the balls ride. If you see any signs of metal fatigue or significant heat discoloration, replace the race immediately. It is much cheaper to replace a single race during prep than to replace a broken axle, stub axle, and CV boot on the side of a trail.