Driveshaft Carbon 29in Modified w/Yoke

The QA1 Driveshaft Carbon 29in Modified w/Yoke (MPN JJ-12201) is a carbon fiber driveshaft engineered for dirt modified and circle track racing applications. Weighing 10.55 lbs and measuring 29 inches in length, this universal driveshaft delivers the rotational rigidity and weight reduction that racers demand when every tenth of a second matters. The carbon fiber construction significantly reduces unsprung weight compared to traditional steel shafts, improving acceleration response and reducing drivetrain stress during hard launches and cornering.

The shaft features 1310 U-joints rated for high-torque applications and an 8-inch slip yoke, delivering the geometry flexibility required in modified chassis where suspension travel and wheelbase adjustments are common. The 2.25-inch outer diameter provides an optimal balance between strength and weight savings while maintaining universal fitment across a wide range of dirt modified platforms. Carbon fiber's superior stiffness-to-weight ratio minimizes drivetrain deflection, which translates to more consistent power delivery under acceleration and smoother weight transfer through corners—critical advantages in competitive racing where chassis dynamics determine finishing positions.

This driveshaft is purpose-built for circle track competitors, bracket racers, and modified enthusiasts seeking lightweight alternatives to stock steel shafts. QA1's carbon construction is particularly valued in dirt modified classes where weight reduction directly impacts acceleration, fuel efficiency, and overall performance. The slip yoke design accommodates the aggressive suspension geometry typical of modified racing, where conventional shafts may bind or experience premature failure. Racers upgrading from heavier steel driveshafts often report noticeable improvements in mid-range acceleration and reduced wheel hop during hard acceleration.

QA1 has established credibility in the performance and racing market through precision engineering and material science focused on durability under extreme conditions. This 29-inch modified driveshaft represents the company's commitment to reducing rotating mass while maintaining the structural integrity required for high-horsepower, high-stress dirt track competition. The carbon fiber design is popular among serious racers who view chassis components as integral to lap time and consistency rather than optional upgrades.