Product Description
Genuine Michigan 753T .010 Undersize Main Bearing Set (NORS)
This genuine Michigan 753T .010 main bearing set is a critical internal engine component precision-engineered to support the crankshaft journals within the engine block. Manufactured in the USA during the height of the American automotive era, this set is designed for .010" undersize crankshaft journals on 235 and 261 cubic inch inline-six engines. As a New Old Replacement Stock (NORS) item, it features the specific dowel-type locking configuration and full-groove design required to maintain proper oil flow and structural integrity in 1953-1955 GMC 100 through 450 Series truck restorations.
Key Features:
- Brand: Michigan Engine Bearings
- Part Number: 753T .010
- Position: Main Bearings (Full Set)
- Engine Fitment: GMC 3.9L 235ci (1953-1955) / 4.3L 261ci (1954-1955)
- Origin: Made in the USA
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| GMC | 100 / 150 / 250 / 300 Series Trucks | 1953-1955 | 3.9L 235ci L6 | Full Grooved Dowel Type |
| GMC | 350 / 370 / 450 Series Trucks | 1954-1955 | 4.3L 261ci L6 | Standard Shaft Dia: 2.6835 - 2.7775 |
Fits Years:
1953 1954 1955
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these parts may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
