4x4Wire

About you, your 4x4 and access
John Stewart

4x4 Tech: Driveline Basics


"It's just a steel tube with a u-joint at each end that transfers torque from the output of the transfer case to the axle. Nothin' special, right?" Well... yes, but that is an over-simplified answer.

There are many subtle things about a drive shaft and the conditions it operates in that will greatly affect how well the drive shaft performs. These subtle variables may have a profound impact upon the life of the drive shaft components, the amount of vibration the drive shaft produces, and whether or not the drive shaft is even capable of meeting your vehicle's specific requirements.

In this article we'll explain some of these subtle but extremely important variables, teach you about the different types of drive shafts that exist, and help you understand how to adjust the operating angles to ideal for the type of drive shaft that you have.

Read more about Driveline Basics on 4x4Wire Archives

  7964 Hits
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.

Continue reading
  9310 Hits
John Stewart

Jeep Tech: All About Frames


The Jeep Technical frame pages are all about frames for Jeep vehicles. Jeeps used regular channel frames, boxed frames, and tube frames. Later Jeeps use a frameless uni-body construction in the XJ, ZJ, and WJ. Your frame might not be up to the task of hard use, especially if it is old. Frame boxing and gusseting can prevent frame cracks. Skid plates and cross members are also covered in the frame section.

Read more about Jeep Tech: All About Frames in the 4x4Wire Archives.

  6310 Hits
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.

Continue reading
  7659 Hits
John Stewart

Need Clearance? Relocate shock mount brackets

Rubicon Express Shock Mount BracketsEveryone needs a little extra ground clearance and what better way than a simple shock mount relocation?

Spring lifts provide a combination of ground clearance and space for axle/tire articulation to accommodate travel over rough terrain.  However, the spring pack hanging below the axle has always been a problem to overcome.

Continue reading
  7607 Hits
4x4Wire.com

OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting. Copyright (c) 1999-2020 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission. You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material. All corporate trademarks are the property of their respective owners.