OER 1971-78 Vega, Monza, Astre, Sunbird, Starfire Saginaw 140 Steering Gear Box Manual: 20:1 Ratio 5 Turns Lock-To-Lock Chrome

Part Number: 8270149AC-OER

OER 1971-78 Vega, Monza, Astre, Sunbird, Starfire Saginaw 140 Steering Gear Box Manual: 20:1 Ratio 5 Turns Lock-To-Lock Chrome

Part Number: 8270149AC-OER

Original price was: $362.19.Current price is: $314.95.

In Stock

( Inventory updated: 08/01/2026 )

Estimated ship date: 2-3 business days

We are here to help! Email us for help with your order:

Enhance Your Ride with the Saginaw 140 Steering Gear Box

Experience superior handling and control with the 1971-78 Vega, Monza, Astre, Sunbird, and Starfire Saginaw 140 Steering Gear Box. Designed with performance enthusiasts in mind, this manual steering system offers a precise 20:1 ratio and just 5 turns lock-to-lock, making it a perfect choice for classic car restorations, street rodding, and competitive racing. Built to fit easily in confined spaces and weighing under 12 lbs, this steering box is a reliable upgrade for your vintage vehicle.

Key Features and Benefits

  • Manual Steering: Achieve a direct connection with the road for improved feedback and response.
  • 20:1 Ratio: For a sporty steering feel that enhances driver engagement.
  • 5 Turns Lock-To-Lock: Ideal for tight maneuverability, perfect for urban driving and racing circuits.
  • Chrome Finish: Stylish and durable, ensuring aesthetic appeal alongside functionality.
  • Compact and Lightweight Design: Easily fits under the hood, catering to various vehicle configurations.
  • Universal Compatibility: Works seamlessly with both original manual steering pitman arms and various aftermarket options.

Technical Specifications

  • Input Shaft Size: 5/8″ (0.625″)
  • Spline Count: 36
  • Overall Length: 5.75″
  • Number of Mounting Holes: 3
  • Centerline of Holes: 4.375″
  • Mounting Pattern: 2-3/4″ and 4-3/8″ center-to-center
  • Orientation: Rear Steer
  • System Type: Cross Steer
  • Recommended for vehicles weighing 2800 lbs or less
  • Stock Configuration: When input shaft turns clockwise, the output shaft also turns clockwise.

Fitment Information

Chevrolet Applications:

  • 1971-1977 Vega 4 cylinder (except Cosworth)
  • 1975-1978 Monza

Oldsmobile Applications:

  • 1976-1978 Starfire 4 cylinder

Pontiac Applications:

  • 1975-1977 Astre
  • 1976-1978 Sunbird 4 cylinder

Upgrade your steering system with the Saginaw 140 Steering Gear Box, where classic engineering meets modern efficiency. This top-quality steering gear will enhance both the performance and style of your vintage vehicle for years to come.

Loading fitment data...

OER

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.

Product Questions & Answers

If you have a question about an order, please use Contact Form for fastest response.