New from ATI – the output shafts and an extension housing for 4L80E & 4L85E transmissions. These parts are built to last and rated to over 1,500 horsepower. See more details below.

Official Release:

ATI Performance Products is proud to introduce two new output shafts and an extension housing for 4L80E & 4L85E transmissions. These new shafts are made from 300M material, with a 4140HT splined hub, rated to over 1,500 horsepower, and are 100% made in house. 705240 is a standard 4L length and 705241 is a custom length, that when used with the ATI heavy duty cast aluminum roller bearing tail housing (Part # 701935), makes your 4L85E the same length as a T400 transmission – allowing for easier swaps and fitment. ATI’s 2-piece 300M Output Shafts will work with OEM and aftermarket cases.

ATI also has a variety of complete 4L85E Street Rod Packages that can handle from 700 to 1,500 horsepower and will fit most GM, Ford, and Chrysler engines along with the popular Toyota 2JZ.

ATI Performance Products is located in Baltimore, MD, and specializes in producing and maintaining high performance products for street and strip applications. Over the years ATI has earned a reputation for its cutting- edge technology, attention to detail, and rigorous testing under race conditions.

Features:

• Rated to over 1,500 horsepower
• Made from 300M material with a 4140HT splined hub
• Can be used with the ATI heavy duty cast aluminum roller bearing tail housing