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John Stewart

4x4 Tech: A look at axle wrap prevention devices

Don't let this happen to your springs. Springs can deflect to take this shape under load, when the pinion has rotated up in reaction to the torque applied to the tires

Axle wrap is a problem that plagues leaf sprung vehicles with soft springs, particularly those that are set up SOA (Spring Over Axle). Axle wrap is something different than wheel hop. Wheel hop is when an axle on your 4x4 rapidly hops up and down. Axle wrap is unwanted suspension movement that allows the pinion angle to change. Wheel hop is annoying and could cause drivetrain breakage, but usually it's not the actual hopping that breaks parts, it's the axle wrap that results from the hop that causes drivelines to bind and breaks yokes, drive shafts, and sometimes even pinions.

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John Stewart

Tube It Out!

Tube It Out! Building a tube rockbuggy

There are many ways that tubing out portions of your four wheeler can improve it's off road performance. It can improve departure and approach angles, allow more engine cooling, protect the engine and radiator in case of roll over, allow larger tires with no lift, and improve visibility. Maybe the best reason is it just looks cool.

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John Stewart

All About Fasteners, Chapter Two - Nuts, Bolts, and Screws

SAE Inch Nut Size Chart ISO / DIN Metric Size Nut Chart

In this installment of our discussion about fasteners, we'll travel into the boring but equally as critical properties of nuts and washers. We'll show you the different types of nuts that are common to our assemblies and modifications.

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Steven Lutz

Why switch from Steel Cable to Synthetic Winchlines? Safety, Strength, & Ease of Handling

Training: While synthetic winch lines are much safer, recovery operations are still dangerous and we encourage all winch owners with steel or synthetic winch lines to attend safety and training classes from certified trainers such as: Bill Burke, Tom Severin, Bruce Elfstrom, Garrett Porter and others. See I4WDTA for more information.

Ease of Handling: Steel winch cables have a tendency to kink, rust, and have very sharp strands once nicked. They also tend to straighten by the nature of the material making them harder to spool back on the winch properly. Our synthetic winchlines have none of these problems. However, synthetic lines are more susceptible to sharp edges (bumpers in particular) and heat, but they are much stronger, safer and easier to work with.

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John Stewart

All About Fasteners, Chapter One - Nuts, Bolts, and Screws

This is the first in a series of articles regarding fasteners. Over the coming months we will discuss bolts, , nuts, washers, specialty fasteners and their applications.Typical Screw and Bolt Configurations

This month our discussion turns to bolts and screws. The purpose of this article is to provide a cursory overview of the common nomenclature, grades and classes, identification of both SAE Inch and ISO / DIN Metric bolts and screws and a short overview of screw threads.

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