There is a difference between glass for the windshield and for side or rear windows.
Windshields use "Laminated Safety Glass". This means there is an inner and outer piece of glass laminated to a .030" thick plastic liner. This glass stays in place when it breaks. It is designated "AS-1".
Side and rear glass is traditionally made of "tempered glass". This glass is very hard and doesn't break easily, but when it does, it shatters into a thousand pieces. It is designated "AS-2". The NSRA and other street rod organizations recommend that you use only "AS-1" in windshields. Never use "AS-2" for your windshield.

Note: When having your glass cut, tell them to place the engraved information logo in one corner of the windshield that designates glass type.

How Big of Tires Can I Fit - Plus Sizing Guide

by Mark Houlahan - Posted in Tech

3/7/2023

Changing your tire’s profile, be it width, height, or both, can provide increased traction, braking, and handling. Learn more in our guide.

Mopar Flexplate Identification Guide

by Mark Houlahan - Posted in Tech

1/25/2023

Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. Our Mopar flexplate buyer’s guide will help.

Ford Flexplate Identification Guide

by Mark Houlahan - Posted in Tech

1/13/2023

Ford’s small block and big block engine families have their share of flexplate differences. We’ll show you what to look for in this buyer’s guide.

LS Engine Flexplate Fitment Guide

by Mark Houlahan - Posted in Videos

1/11/2023

The LS swap is no doubt still going strong, but if you’re planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, you’ll need to pay attention to a few items we discuss in this buyer’s guide.

Small Block and Big Block Chevy Engine Flexplate Guide

by Mark Houlahan - Posted in Tech

1/11/2023

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Why Convert to A One Wire Alternator

by Mark Houlahan - Posted in Tech

12/29/2022

Learn how to hook up a 1-wire alternator on your vehicle. 1-wire alternators are perfect for engine swaps or just keeping things simple for your project.

What You Need to Know About Flexplates

by Mark Houlahan - Posted in Tech

12/27/2022

The engine’s flexplate is a critical part to transferring power to your drivetrain. Using the correct part is imperative to engine longevity and proper drivetrain assembly.

Ammeter vs Voltmeter: How They Work, and Which One Is Right for Your Car

by Mark Houlahan - Posted in Tech

12/21/2022

Ammeters and voltmeters are two very different ways of monitoring your vehicle’s charging system. Both are better than an “idiot light” but which one is right for your build?

1967-1972 Chevy C10 Pickup Lowering Guide

by Mark Houlahan - Posted in Tech

12/19/2022

From a mild leveling to slammed and “in the weeds” there are several options to lowering a C10. We discuss the options in our ’67-’72 C10 lowering guide.

What Is Positraction and Do You Need It?

by Mark Houlahan - Posted in Tech

11/10/2022

Posi, limited slip, Traction-Lok, or whatever your favorite brand calls it is how your rear axle provide equal traction to both tires, and trust us, you’ll need it! So, read all about posi units and their benefits here in our guide.

How to Choose Between Tempered and Laminated Glass

Related Articles