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RTS Transmission Intermediate Shaft, Forged 300M Material, Suits GM TH400/4L80E/4L85E Main Shaft, Each

RTS Transmission Intermediate Shaft, Forged 300M Material, Suits GM TH400/4L80E/4L85E Main Shaft, Each

by RTS
SKU RTS-ISCMTH350
$429.45 - $429.45
$429.45
$429.45 - $429.45
$429.45

The RTS 300M Main Shaft is designed as a super high-strength upgrade for performance GM automatic transmissions where the factory shaft can become a weak point under increased power and torque.

Manufactured from high-strength 300M alloy steel, this shaft provides excellent toughness and resistance to twisting and fatigue under severe loads. It is ideal for high-horsepower street, drag and competition applications where increased drivetrain reliability is required.

Designed to suit GM TH400, 4L80E and 4L85E transmissions, the RTS 300M Main Shaft is a direct performance upgrade for demanding transmission builds.

Features:

  • Manufactured from high-strength 300M billet steel
  • Designed for high-horsepower and high-torque applications (1000 HP+)
  • Excellent resistance to twisting and fatigue
  • Suitable for performance street, drag and competition use
  • Suits GM TH400, 4L80E and 4L85E transmissions