What is a Double-D (DD) shaft?

A Double-D shaft is a steering shaft that has been flattened on two opposite sides, creating a D-shape. This design ensures a positive, non-slip connection with compatible U-joints or steering components, preventing any rotational play.

What does the 3/4-inch, 36-spline connection mean?

This refers to the diameter and the number of teeth on the spline. The 3/4-inch diameter is the overall size of the shaft, and the 36 splines are the grooves that mesh with a corresponding female spline on another component, like a steering rack or a steering wheel adapter.

Do I need any special tools to install this U-joint?

Installation typically involves basic hand tools for loosening and tightening set screws. You'll need to ensure the shafts are properly aligned and the set screws are securely tightened to prevent any slippage. Refer to the manufacturer's installation instructions for specific details.

Ridetech 78-81 GM F-Body Front Steering Column U-Joint Kit - 1in DD to 3/4in-36 Spline

Specifications

Brand: Ridetech
Part #: 11009536
UPC: 840123519047

Ridetech 78-81 GM F-Body Front Steering Column U-Joint Kit - 1in DD to 3/4in-36 Spline

Name: Ridetech 78-81 GM F-Body Front Steering Column U-Joint Kit - 1in DD to 3/4in-36 Spline
Brand: Ridetech
Price: 310.08 USD
Availability: InStock

$310.08

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Fits 1978-1981 Chevrolet Camaro. This steering U-joint kit connects your 1in DD steering shaft to a 3/4in-36 spline shaft, essential for custom steering setups.

Key Features

Fits 1978-1981 Chevrolet Camaro and 1978-1981 Pontiac Firebird.
Connects a 1-inch Double-D (DD) steering shaft to a 3/4-inch, 36-spline steering shaft.
Designed for use with stock steering columns and aftermarket steering systems, especially with Ridetech subframes.
Ensures a solid, non-slip connection for precise steering input.
Well-built for reliable performance in custom steering applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Chevrolet Camaro 1978-1981
Pontiac Firebird 1978-1981

Product Details

This steering U-joint kit is built with a 1-inch Double-D (DD) shaft on one end and a 3/4-inch, 36-spline shaft on the other. It’s designed to connect your stock steering column, which typically has the 1-inch DD shaft, to a steering system that uses the 3/4-inch, 36-spline connection, especially when paired with a Ridetech subframe on your 1978-1981 Chevrolet Camaro or Pontiac Firebird.

Using a U-joint like this is common when you're upgrading to a more modern steering rack or a custom steering column. The DD shaft design ensures a solid, non-slip connection, preventing any play or looseness that could affect steering precision. The 3/4-inch, 36-spline end offers a common interface for many aftermarket steering components, making it a versatile piece for custom builds.

This kit is a well-built component that helps ensure a smooth and accurate transfer of steering input from the wheel to the road. It's a critical piece for anyone modifying their steering system to achieve better feel and control.