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Modifications and technical information about Jeeps

John Stewart

Steering - bump steer after a lift

The 4x4Wire JK recently underwent a slight transformation - from stock to gears, lockers, and lift. That change included new (larger) tires. But, that change did not include replacing the steering damper. Extended road driving pointed out the need to upgrade the steering damper in order to reduce vibration caused by the larger tires on certain sections of road.

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John Stewart

Steering update

After driving around with the "heavy-duty" damper (or stabilizer), it is slightly better than stock. However, road sections with... Read More
Saturday, 10 November 2012 16:44
John Stewart

Steering update

After completing about a 1000 mile trip on California freeways and secondary roads in varying degrees of disrepair, I find the hea... Read More
Sunday, 18 November 2012 22:10
John Stewart

Synergy Suspension Jeep JK Hig...

The Synergy Suspension (http://synergysuspension.com) Jeep JK steering correction kit is now installed. The kit does provide a si... Read More
Thursday, 29 November 2012 20:30
John Stewart

Jeep Axle Options

One of the more common upgrades for a Jeep are axles and the options are many.  The 4x4Wire Jeep Technical axle pages feature articles about stock Jeep axles, axle conversions and upgrades on Jeep vehicles. Various upgrades are covered including one piece axle swaps, full floating swaps, ring and pinion swaps, locker installations, etc.

Click here for more information about Jeep Tech Axles from the 4x4Wire Archives.

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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.

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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.

John Stewart

When Springs Break (Part 4)

Front spring installedWas it the springs?  Was it the installation?  Was it the combination?  Within a two week period, I had experienced two emergency repair situations with leaf springs; overall, two broken and two bent springs.  The suspension was a not performing as it should.  4x4 isn't much good without a functional suspension system.

The “Spring Saga” began with “Options for the height challenged” which was a spring-over lift for my 1994 Jeep YJ.  As I was replacing a 4 inch spring lift, new springs were necessary.  The basic lift components were Rubicon Express and I opted for Rubicon Express springs which provided 1.5 inch of spring lift in addition to the spring over lift.  And, I was able to remove the two inch body lift and still clear 35 inch tires.  

While the combination was a great performer on the articulation challenges of Ocotillo Wells SVRA, a major deficiency was soon apparent.  After the breaks and emergency repairs, serious questions were in order.  Why should brand new springs break and bend that easy?  What is it about a spring-over that created this situation?

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