These fundamental differences will influence what lines you pick on the trail, as well as influence driving style. IFS systems have more joints that need lubricating and protecting, so the axle boots on your off-road truck can wear out or be easily damaged.

By their very nature, solid front axles have more un-sprung weight than A-arm systems.
Myth two: The narrow IFS differential means longer CV shafts and longer A-arms are possible while maintaining a reasonable track width, all with rock-and-whoop gobbling wheel travel. They’re different from lift kits because their goal is to increase wheel travel, rather than to provide lift height. An incomplete list includes All-Pro Off Road, Brenthel Industries, Camburg, Dixon Bros.

As such, you can count on the same amount of ground clearance as your suspension cycles. So how are you supposed to know which you should invest in when looking for a vehicle that will do great on the trails? All of this IFS trickery hangs from custom tube work.

These tend to be weaker and less rigid compared to their cast-iron counterparts. CV boots are prone to trail damage and wear from age and everyday driving. Stock front differentials are retained. At the knuckle, U-joints don’t have fragile factory boots so they’re stronger in the face of trail debris and flailing sway bar link ends. Are bigger suspension lifts better? The Nissley Racing XJ Cherokee enjoyed several seasons of Jeepspeed racing before recently going to a new owner. All rights reserved. A much-argued debate in the off-road community by truck owners is which type of axle is better - solid or independent?

This leads to a higher chance of needing to repair the axles and it is a more complicated job to do such repairs. Fullsize IFS trucks tend to see more of a problem with this than their smaller counterparts, but ball joints can fail and allow knuckles/wheels/tires to leave the front corners of the truck. By and large, solid front axles have a lot of built-in strength right from the dealer lot. Remember that with a solid axle, the wheel centerline is in the same plane as the axle housing. However, the differential also goes up and down with the suspension.

That puts the choice right back into your lap - so any choice you make between solid axles and independent front suspensions should be researched first and then a decision made based on what is best for your off-road truck! Want more strength for less coin? Solid front axles start with a housing that’s got either a cast-iron centersection (Dana style) or a stamped steel housing with a dropout third member (Toyota style). Resources | Sitemap, A Reputation For The Highest Quality And Design. Long-travel leaf springs are also available from companies like Deaver Spring. The A-arms are built from scratch, the lowers created from TIG-welded 4130 plate and the uppers from CNC-machined aluminum. Bolt-On IFS Performance For rock and hill climbing, solid axles are more durable and have slightly better traction; however, IFS may offer just a bit more ground clearance.

There are more moving parts needed to allow each wheel its ownaxis of movement. Campbell’s KOH buggy uses a Currie F9 IFS differential.

A solid front axle wins this one. The other IFS problem in the photo is the dinky diameter of the factory tie rod. • If you can’t build a fully custom IFS system, what do you do? A solid axle setup can improve traction over big bumps and hills as well as gain more torque from the differential as there are fewer parts that power must transfer through. The loose end of the broken link swung down and mangled the CV boot. Bypass shocks offer a level of control that other shocks can’t touch. It can provide more front end clearance in some instances as the front wheels have greater articulation. Bump Travel

Here are some examples. Ball joints can also be a weak point for 4WD IFS vehicles. © 2020 Four Wheeler | MOTOR TREND GROUP, LLC. It’s time for a modified IFS. Un-sprung weight is vehicle weight which is not supported by springs. Each style of front suspension has strengths and weaknesses, and it’s up to you to decide what to go with. Cloudflare Ray ID: 5ed4d330dac22e83 In addition, most IFS use cast aluminum differential housings, which are nowhere near as durable as the cast iron used on solid axles.

Bottom Line This custom 2WD frontend was built by Tony Sato at Currie Enterprises, and is found under the neon-green XJ seen flying in the following photo.

Yes, we’re talking about wheel travel.

This is the higher-tech suspension option for sure. IFS Weaknesses

On the other hand, an A-arm system doesn’t have this restriction, and the wheels can travel much further upward. In this case, a factory Toyota sway bar end link failed at the ball joint. A Word about Un-Sprung Weight Wheels, tires, brakes, and solid axle housings are all examples of un-sprung weight. Solid axles go straight across from one wheel to the other, while IFS axles angle upward to connect to a separate control arm. “A hit to one side can pull the whole front end to that side.”. Shannon Campbell answered that question with a convincing win at 2011’s King of the Hammers. Ground clearance is determined primarily by tire size, not by suspension type. They are considerably heavier than IFS due to those cast iron differential housings.
The steering system uses a custom-built Saginaw steering box with a ram assist. When the Jeepspeed racing series began, many thought the term “Jeepspeed” was nothing short of an oxymoron. Your IP: 45.123.144.16 There is, however, a fundamental difference in the type of ground clearance you get with a solid-axle versus A-arm frontend. The Ford Twin Traction Beam front suspension has its own merits and demerits, but there’s not enough room for a three-way comparison. Suspension lifts also become more complicated.

We’re showing custom aftermarket tie rods here, but most solid front axles come with tie rods much, much thicker and stronger than their IFS equivalents. Remember the part about most IFS weaknesses resulting from factory designs? The other potential problem with an aluminum differential housing is fragility in the face of sharp rocks. Solid axles are also more durable than most IFS axles and can be easily changed in comparison, making axle repairs on off-road trucks no problem . A solid axle inherently can’t achieve as much bump travel as an A-arm system. How’s this for going fast and flying high? If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. A-Arms are Worthless on the Rocks


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