Intuitive Design, Quality Products.
Made in the U.S.A
At Wolff Engineering, we design and manufacture American-made custom mechanical components that solve real-world engineering problems — trusted by professionals nationwide.
Veteran designed and made in the USA. It’s time to come home.
About Wolff Engineering
With over 2 decades of experience, Kevin Wolff and Wolff Engineering has specialized in designing and building precision mechanical components and assemblies for multiple industries. We combine innovation, craftsmanship, and technology to deliver high-performance products like steering column bearings, motion control systems, and custom assemblies — all proudly made in America.
Featured Products
Trusted by automotive experts nationwide.
Why Choose Wolff Engineering?
Why Choose Wolff Engineering
Made in USA – We take pride in American quality and craftsmanship.
Engineer-Led Team – Designed by experts who understand mechanical performance.
Custom Fit Solutions - Tailored products designed and engineered to fit your specific project needs.
Fast Turnaround – Rapid prototyping and efficient delivery.
Nationwide Service – Serving customers across the U.S.
Reliable Support – We’re here to help before and after your purchase.
How We Work
Our Process
From idea to installation — our process ensures quality every step of the way.
01
Consult & Analyze
We discuss your needs and project goals.
02
Design & Prototype
Our engineers create 3D CAD models and test concepts.
03
Build & Test
Manufacturing and quality assurance at every level.
04
Deliver & Support
On-time delivery and continued technical assistance.
What Our Customers Say
***4 - Business Day Lead Time on All Orders***
Wolff Engineering GM109SS Lower Steering Column Cartridge Bearing for GM columns with 2" jacket and 1" shaft. This cartridge bearing is designed around a precision, sealed deep-groove radial ball bearing. The cartridge body is constructed of acetal and is fitted with two Buna-N O-rings to insure a snug fit into the column jacket. The center hub is CNC turned from stainless steel and has four stainless steel set screws that engage the steering shaft. This arrangement produces a precise fit with zero radial play.
The GM109SS column bearing arrives as a kit and includes the following items:
Cartridge Bearing Assembly
Hex Key wrench for installation
Detailed Instructions
This bearing is an excellent upgrade over current import OEM design offerings and will last the life of the vehicle.
Please see the picture of the OEM bearing on this page. If your OEM bearing looks like the one pictured, then the GM109SS will serve as a direct replacement. The GM109SS is compatible with the following vehicles.
Cadillac Escalade 2002-2006
Chevrolet S10 1998-2004
Chevrolet Blazer 1998-2004
Chevrolet Silverado 1500 1996-2007
Chevrolet Silverado 2500 1996-2007
Chevrolet Silverado 3500 2001-2007
Chevrolet Tahoe 2000-2006
Chevrolet Suburban 1500 2001-2006
Chevrolet Suburban 2500 2001-2006
Chevrolet Avalanche 1500 2002-2006
Chevrolet Avalanche 2500 2002-2006
Chevrolet Express 1500 2008-2014
Chevrolet Express 2500 2008-2017
Chevrolet Express 3500 2005-2017
Chevrolet Express 4500 2009-2016
Chevrolet Express Cargo (Mexico) 2009-2017
Chevrolet Express Pasajeros (Mexico) 2009-2017
GMC Jimmy 1998-2001
GMC Sierra 1500 1996-2006
GMC Sierra 1500 HD 2001-2006
GMC Sierra 1500 (HD) Classic 2007
GMC Sierra 2500 1996-2004
GMC Sierra 2500 HD 2001-2006
GMC Sierra 2500 HD Classic 2007
GMC Sierra 3500 2001-2006
GMC Sierra 3500 Classic 2007
GMC Sonoma 1998-2004
GMC Yukon 2000-2006
GMC Yukon XL 1500 2000-2006
GMC Yukon XL 2500 2001-2006
GMC Savana 1500 2008-2014
GMC Savana 2500 2008-2017
GMC Savana 3500 2005-2017
GMC Savana 4500 2009-2016
Oldsmobile Bravada 1998-2001
**** 4 day lead time ****