What do the springs on a Jeep Wrangler TJ do?
These springs help raise the suspension of your Jeep Wrangler TJ so that you can run bigger, taller tires. When these springs wear out, you obviously cannot replace them with regular stock parts.
How much will my Jeep Wrangler ride height be lifted?
The total ride height your Jeep Wrangler will be lifted will also depend on the size of tires you are running. For example, if you start with a stock Wrangler and assuming the stock 30 inch tires and we put on 33 inch tires we will be effectively adding 1.5 inch lift to the total height of the Jeep Wrangler.
What size coil springs do I need for a Jeep Wrangler?
You will have to order larger aftermarket Jeep Wrangler TJ coil springs based on the size of your lift. We carry a wide selection of springs ranging from 2.5” to 6.0.” Sold in pairs, these sets are relatively inexpensive and easy to install. Any amateur mechanic should be able to put them in place in an hour or two.
What is suspension on a Jeep Wrangler?
The first item people associate with suspension is springs and shocks. Older Wranglers (YJs) have leaf springs, while newer models have coil springs. Both are designed to absorb vertical impacts.
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How tall are stock Jeep TJ Springs?
Registered. I know mounted, factory spring heights are 12" front and 8" rear.
What is the stock height of a Jeep Wrangler?
It is 71.5" front (top of the front by the windshield), 72.5" back edge height.
Does a 1997 Jeep Wrangler have leaf springs front and rear?
The front and rear lower control arms are identical, but the upper control arms have isolator bushings in both ends. Instead of leaf springs, the suspension uses single-rate coil springs, which provide minimal friction and thus more free articulation and smoother operation.
How are lift coil springs measured?
How to measure you spring lift. ... You need to measure the rear part of the front coil spring from where it touches the chassis down to where it touches the spring seat. ... You need to measure the rear part of the rear coil spring from where it touches the chassis down to where it touches the spring seat.More items...
How do I measure the lift on my Jeep?
0:316:18(How To Measure Your Lift) On Your Jeep Cherokee! - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt from the bottom of this flat part of the frame because it's not really a frame because it's aMoreIt from the bottom of this flat part of the frame because it's not really a frame because it's a unibody. But you measure from the flat.
How is JL lift height measured?
STOCK REAR MEASUREMENT On the rear end of our JL Wrangler, we took our measurement from the bottom of the frame rail, just behind the bump stop cup and down to the steel bump stop plated located on the axle.
What year did Jeep Wrangler have coil springs?
The suspension on all Wranglers included trackbars and anti-roll bars, and, from the 1997 TJ onwards, front and rear coil springs instead of the previous leaf-springs. From 2004 on, the Wrangler has been complemented with long-wheelbase versions, called Wrangler Unlimited.
What year did Jeep switch to coil springs?
1990-1999. The All-New 1993 Jeep® Grand Cherokee (ZJ) set a new industry benchmark thanks to its unique balance of on- and off-road capability. The super-capable Wrangler (TJ) with its new coil suspension was introduced in 1997. In 1999 the new Grand Cherokee (WJ) was marketed as the most capable SUV ever.
Which jeeps have leaf springs?
For a Jeep, leaf springs were used on the CJ-series on through to the YJ Jeeps. Some people like to refer to the YJ as the last "real" Jeep because it used leaf springs. While leaf springs are durable, they do need maintenance now and then.
How do I know what size leaf spring I need?
The length of a leaf spring is determined by the number of inches between the tip of the front eye or slipper, and the tip of the back eye or slipper.
How do you measure a front coil spring?
1:323:00How to Measure Compression Springs - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe most accurate and recommended method is measuring the space between the coils. It is best toMoreThe most accurate and recommended method is measuring the space between the coils. It is best to measure the space in two spots towards the center of the spring. And take the average.
How do you reset leaf springs at home?
2:204:49Leaf Spring Re-Arching - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou kind of get your rhythm set up and this is going to take the arch out of the spring. WithoutMoreYou kind of get your rhythm set up and this is going to take the arch out of the spring. Without heating it without adjusting the temper in the spring. So it'll be the same strength.
How to measure suspension lift on a TJ wrangler?
The measurement that has come to be the most accurate and accepted is the length of the coil spring in the front and the coil spring length in the back. You measure this with the coils installed on your Wrangler and with your Wrangler on a flat surface so the weight can be distributed evenly to all the wheels. You then measure the coil including any spacers you have added and dampening rubber that exists. Once you have this number you will subtract 12 inches from the front measurement and from the rear you will subtract 8 inches. This will give you the amount of suspension lift for the front and back that is different from stock.
What is lift height on a Jeep Wrangler?
What is usually referred to as lift height is the amount of lift the body of the Wrangler is lifted above the axles from stock. This is a combination of suspension lift and body lift. Both of these will bring the body further from the axles. This is desirable because it gives a greater amount of clearance for the tires for articulation and flex. Another term that seems to get confused is 'ride height'. Ride height is the total amount of lift the body achieves when measuring from the ground. This is different because it takes into account the size of tires the Jeep Wrangler is using.
Why is ride height important in Jeep Wrangler?
This is desirable because it gives a greater amount of clearance for the tires for articulation and flex. Another term that seems to get confused is 'ride height'. Ride height is the total amount of lift the body achieves when measuring from the ground. This is different because it takes into account the size of tires the Jeep Wrangler is using.
What does installing larger tires on a Jeep Wrangler do?
Written by Kern Campbell in Jeep Wrangler, OFFROAD, Tires. Installing larger tires on your Jeep Wrangler is a great way to increase your off-road performance. If you’re shopping around, looking to upgrade your tire-size, you’ve probably noticed that there’s a huge variety of sizes available, but you may be surprised to learn ...
What Is The Largest Tire You Can Fit On A Stock Jeep Wrangler?
The largest tire you can fit on a stock Jeep Wrangler without lifting it is generally 33 inches. However, keep in mind that, depending on the Wrangler model, a 33-inch tire may not function ideally, and it could do damage to your rig if you take it off-road.
How big should my Jeep tires be?
Every Jeep is different, so there’s no exact answer on exactly how big your tires can be . Owners of different generations often report different results with installing larger tire sizes. If you don’t intend to get a lift, the best approach is to be conservative with installing a larger tire size.
What happens if you put larger tires on a Jeep?
If you have a high-mileage Jeep, you might have some extra play or slop in your suspension. Installing larger tires could result in sloppy movement and rubbing.
Why is it important to know what size tire you can put on a TJ?
For example, the biggest tire you can generally put on a stock TJ and still have full function is 31×10.50 – 15.
What engine does a TJ have?
Your engine and axle ratio might also make a difference. For example, the TJ generation came with both a four-cylinder and six-cylinder engine . Part of running larger tires on a Jeep is being able to properly push them.
Which is better, front or rear flares?
Your front flares are more friendly when it comes to this. Rear flares can be harder to work around if your tires rub on the body or the wheel well.
How high should control arms be on a Jeep?
If you are running one of these entry-level kits on an otherwise stock Jeep, the real world lift is closer to 4 inches. At that range of lift, the caster angle and axle centering is greatly compromised, requiring at least front lower or upper control arms to help regain the correct positive angle and axle positioning.
What is progressive spring?
Progressive springs: Progressive springs have a softer firm rate that gradually increases throughout the length of the spring. Progressive springs are designed to provide a softer ride during slower speeds and a firm ride during higher speeds or tighter cornering because the spring begins to compress further and engages the firmer spring rate. Due to the variance in spring rate, the coils tend to spread out more, resulting in a taller looking spring, which then compresses to the set height.
Why is the track bar on a Jeep so important?
The length of the track bar is important because it properly aligns the axles with the frame of the Jeep. If the Jeep is lifted, that adjustment is shifted towards the driver’s side. An adjustable track bar allows you to extend the length and push the axles back towards the passenger side and properly center it under the frame. There is a tremendous amount of pressure put on the front and rear track bars, making their two attachment points critical. A loose track bar is one the main culprits of “ death wobble ”, a violent shaking of the steering wheel when the Jeep hits a bump in the road. It is important to ensure these bolts are properly tightened and checked often.
What is a linear spring?
Linear springs: These are considered an entry level spring, commonly used in the stock Jeep suspension. They have a single spring rate. Although linear springs provide a consistent level of compression in average conditions, they are prone to fading and sagging over time and excessive use. Progressively Wound Springs.
How to improve Jeep handling?
If you’re looking to improve your Jeep’s handling, it’s important to note a lower center of gravity is key to optimal handling. Lifting your Jeep’s height will counter this. The key is to find a set of springs with a stiffer compression rate than the factory springs, but without adding additional height.
What is a dual rate spring?
Dual rate springs: These are among the newest form of springs available, fusing two independent spring rates into a single coil. They are designed to act independently with the softer rate used at slower speeds and then form the base for the stiffer rate during higher speeds or tighter cornering. Dual rate springs tend to sit within the same height as linear springs and offer a greater center of gravity while still providing great travel during off-road use.