Saginaw 800 3-bolt 12:1 Power Steering Gearbox For GM Classic Cars

$ 1,045.00 plus $75.00 Core deposit

7 reviews

SKU: GB-800-12-3-35

IMPORTANT NOTE: There is a Core charge of $75 that is included in the price of this product. If you return your Core to us, we will refund a portion of this product total. The portion refunded will depend on the quality of Core you are delivering to us. View our core values and policies.

SHIPPING LABEL: We can usually supply a shipping label for approximately $25 (depending on your address) for you to send your core to us. Please call 661-568-9170 to arrange.

Total Price: $1,120.00


Product Details

Quick ratio OEM replacement steering gearbox.

This is a newer style Saginaw 800 gearbox that has the smaller 3/4-30 spline input shaft. If you are installing in a Pre 1980 vehicle, you will need a 3/4-30 rag joint (our Part # RAG-S), or you can choose to the 13/16-36 input shaft upgrade for $75. Also choose the fitting style that matches your needs (Seat kit installed for Pre 1980 inverted flare hoses, No seats installed for 1980- Present o-ring style hoses, or -6 AN fittings).

This gearbox is fitted with a custom 35# valve that will give your classic car that modern car feel you are looking for. This is the most popular gearbox we sell! To lean more about steering feel and valve weights take a look at this link: Steering Feel Explained


  • 12:1 Ratio
  • 3 bolt mounting pattern
  • 3/4-30 spline input shaft
  • Valve Weight: 35#


  • Fittings: Choose Inverted Flare for Pre-1980 vehicles, O-Ring for 1980-present, or -6AN
  • 13/16-36 Spline input shaft
  • Billet End Cap
  • Billet Top Cover with Needle Bearing
  • 3 Bearing Kit: Includes Billet Top Cover w/needle bearing, mid bearing, bottom bearing, sleeve, o-ring and labor to bore housing


This product will be shipped between 5-7 business days from when order is placed.


12 Month Limited Warranty Against Manufacturer Defects. View our full warranty details.

Return Policy

Items may be returned within 30 days of purchase. Your original order receipt should be included in the return box. Items should be sent using the original packaging. Upon receipt of your return, we will ensure all items are undamaged, and issue your refund.

    Customer Reviews
    4.6 Based on 7 Reviews
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    Filter Reviews:
    Ronnie T.
    United States United States

    The Real Deal

    I have purchased two of these gear boxes one for 1969 camaro and one for 1968 camaro. It made both cars feel more like modern day steering. One of my favorite upgrades. Thanks for a good product!!

    Jonathan W.
    United States United States

    1000% Improvement!

    After installing some minor suspension improvements and your steering gearbox, our '66 Chevelle has turned into a real corner carver. Thanks to you, it's a true joy to drive with such precision!

    BRIAN B.
    United States United States

    The Best!!!!!!!!!!

    The people over at Lee's never disappoint. Always the best steering gear on the map.

    United States United States

    800 Saginaw

    I got the 12:1 box with the 3 bearing kit for an S10. It made a world of difference, it steers like a rack and pinion and only takes 2 1/2 turns lock to lock.

    United States

    Lee steering box

    After 100 miles or so, I have decided it does what I wanted it to do. Much more positive control of the on center position. Since steering is the most important function of driving, and the stock box has been a source of frustration, the Lee power steering box is worth what I paid for it. Thanx, Mike