Summit racing has everything you need to build the triangulated or parallel 4link suspension setup you want. From heidts and ridetech, to detroit speed and helix, and many more, summit racing carries a massive selection of four link suspension kits from the most trusted brands in performance suspension. Performance trends 4 link calculator demo movie saving and. Oct 14, 2015 suspension geometry software for purchase. Anytime you add a pivot, you add a wear item and the potential for deflection. On a triangulated 4 link the uppers bars are placed at an angle to the lowers. The parallel fourlink needs a track bar to locate the axle side to side. This is a 4 link suspension with the two upper links angled in toward the differential.
I would rather do a 3 link in the front for steering reasons and i would use coil overs with a stiffer spring rate to help with stability around corners. Personally for the type of vehicles im dealing with i typically prefer a triangulated 4link so i. It a pain in the ass to fit a fully triangulated 4 link setup under the front of your rig which is why you see a lot of people running a 4 link in the rear and a 3 link setup in the front. Triangulated 4link rear suspension street rod engineering. This item does not ship for free place your order and an avs representative will call. What the parallel four link gives up in strength compared to the radius arm, it makes up for in better ride quality and handling. When connected securely to the axle and the frame, they form a triangle. Five years ago, i fabricated and installed a triangulated 4link rear suspension on my 29 hiboy w32 frame that was originally built in the 80s, so this was a major upgrade. Im able to get the motion to work correctly until i add the upper bar shown in the attached image in red im wondering if the joints think they are conflicting the bottom bar joints. The angled upper links provide lateral support for the rearend housing, eliminating the need for an additional panhard bar or watts link system.
This is a builders package with our 3 link front and our double triangulated 4 link rear suspension bracket kits. Lets compare two popular types of 4link rear suspension systems. A guide to tuning your four link suspension system posted by wayne scraba on april 23. To answer the original question, i concur that what the lift kit manufacturer is saying is that the triangulated 4link eliminates the tracbar or panhard rod that controls the axle laterally. Triangulated four bar rear suspension tbucket forums. Vehicle travel is simulated by dragging the image with the mouse or with a scroll bar. Jul 19, 2004 to answer the original question, i concur that what the lift kit manufacturer is saying is that the triangulated 4 link eliminates the tracbar or panhard rod that controls the axle laterally. Rear suspension design three link four link two link. Apr 30, 2009 performance trends 4 link calculator demo movie saving and more. In this article well cover what we consider to be the three most important elements. Apr 01, 2008 to find the simple roll center of a triangulated link system, you would first find the instant center of the overhead bars figure 10.
Pressing the edit button immediately switches to edit mode listing more details about the dimensions of the model and allowing you to. Oct 01, 2014 triangulated four bar rear suspension. A 4links is a great way to upgrade your cars performance and ride quality especially when compared to leaf springs. Heavy duty rod ends are a must on any 4 link that will take right pedal abuse. What the parallel fourlink gives up in strength compared to the radius arm, it makes up for in better ride quality and handling. This will eliminate side to side deflection of the axle, as the suspension cycles vertically, that would otherwise be present with a panhard rod. Looking at various rear suspension configurations, design a rear suspension. One of the most common questions we get about suspension setup and tuning is how 4link geometry affects the performance and handling of a vehicle. A custom 1949 mercury on full air ride suspension to be exact. A newer style that has come stock in many vehicles and that works well as an allaround type of suspension. Performance trends offers a few different options, including a free trial. Design of a rear suspension configuration for a live.
A guide to tuning your fourlink suspension system posted by wayne scraba on april 23. Like the front system, the vertical separation of the links resists the drive and braking torsion. Please practice handwashing and social distancing, and. You enter heights above the ground and distance ahead of the front axle for up to 6 holes for all 4 brackets for your car, or any number of cars. I have built several vehicles with triangulated 4link suspensions previous as well as a couple parallel 4 bar setups. Four heavy duty 24 steel bars four zinc plated steel rod ends w urethane bushings two steel, weldon axle mounts two steel, weldon fame mounts four steel, weldon center link axle mounts ten hex head bolts with nyloc nuts. Choosing the right shocks, coilovers or air, reservoir of mono tube all details will be discussed, plus ian builds a mock up chassis and gives stepbystep instructions on how to calculate and build his favorite set up. The kit can be used with rear coilovers and daves customs unlimited rear outboard shock tower kit or rear coil springs with our universal upper mounts and our lower coil mounts. Compliance under load can have an important effect and must be checked using a multibody simulation software. Theres a couple reasons why you would choose a 3 link setup vs a 4 link with the main reason being packaging. At ride height, rear to front, bottom bars are 1 degree down and upper bars are 5 degrees up. This is the 4 link kit from our legend suspension kit.
Like all ridetech 4links, this design features rjoint rod ends. This thesis outlines the process of designing a three link front, and four link rear suspension system. Chris alstons chassisworks, inc chassisworks weldin. Choosing the right shocks, coilovers or air, reservoir of mono tube all details will be discussed, plus ian builds a mock up chassis and gives stepbystep instructions on. On this episode of rock rods tech jake burkey teaches us about the dos and donts of building a double triangulated 4 link suspension. Whether or not it will hang low enough to get the tire off will depend on the geometry of the suspension, body, and air bags. Universal weldon triangulated 4 link suspension kit.
This is a triangulated 4link rear kit that is universal that can be used on any jeep cj, yj, tj, early bronco, or toyota. Chandler spent nearly 800 hours using a cad program to design and refine. The 4link calculator lets you input, view, save, analyze and compare your 4link rear suspension geometry. Along with the movement of the chassis, the front link attachment points move, and the rear ones move correspondingly. The universal triangulated 4link enables you to install a hightravel rear suspension using a minimum of components and custom fabrication. Here is ridetechs universal triangulated 4link rear suspension system. Summit racing has everything you need to build the triangulated or parallel 4 link suspension setup you want. Putting a triangulated 4link under your car or truck is one the best upgrades you can make. Designed to fit a tj or yj this is your change to get a screaming deal on. They use rubber bushings to improve ride quality, do not require a panhard bar, and feature round, 0. Ridetech triangulated 4link systems are designed for the the professional builder who wants a straightforward, nocompromise rear air ride suspension. Installation instructions 1932 ford rear triangulated 4link kit these two axis should be parallel figure 5 2 2714 2 figure 3 37 pinion angle of 2o see step 1 figure 1 figure 2 figure 4 16 1. To find the simple roll center of a triangulated link system, you would first find the instant center of the overhead bars figure 10.
These systems are commonly found on vehicles used for the. Add a 4 link suspension kit to your car or truck to add performance and adjustability to your suspension. Putting a triangulated 4 link under your car or truck is one the best upgrades you can make. Can i modify a 32 triangulated suspension to work on my 23 tbucket. This item does not ship for free place your order and an avs representative will call you with a shippingfreight total before final processing. Another fourlink design is the triangulated fourlink. This video will help you on build so you can get the right setup. As you drag the mouse or the scroll bar, the car moves up and down in response. Designed to fit a tj or yj this is your change to get a screaming deal on our most popular brackets as a package. Geometry being what it is, all suspension systems have.
Image result for triangulated 4 link suspension geometry. Ridetech triangulated 4 link systems are designed for the the professional builder who wants a straightforward, nocompromise rear air ride suspension. At some point you will want to enter your own suspension geometry data or even just just view the current model in more detail. The parallel four link needs a track bar to locate the axle side to side. Choose from jegs, competition engineering and other high strength 4 link suspension kits or replacement parts. Triangulated 4 link rear suspension system chassis fabrication. You can easily design a 34 link to drive well down the road. It is also difficult to tune the geometry without a full 3d computer aided design analysis. The center of the hole marked hole a in figure 3 should be exactly 4516 measured vertically from the center of the top hole on the lower crossmember, and exactly 38 measured horizontally. Performance trends 4 link calculator demo movie saving and more. Computer program to simulate and analyze rear suspension 4link. We can make a triangulated 4link to the specifications of your frame and chosen rear end. This is the 4link kit from our legend suspension kit. Although there are several theories as to which type of 4link is better, it comes down to available space and preference.
The roll axis of a triangulated 4link in plan view. Design of three and four link suspensions for off road use. Another four link design is the triangulated four link. With frame leveled side to side and sitting at the rake if any front to rear that it will be finished, locate rear axle centerline and mark on frame rail sides. One of the most common questions we get about suspension setup and tuning is how 4 link geometry affects the performance and handling of a vehicle.
Oct 26, 2017 i am trying to model a triangulated 4 link suspension setup and am having difficulties in setting up the joints. A fourlink suspension uses links to locate the axle from moving side to side and. Installation instructions 1932 ford rear triangulated 4link. In this kit you get a square tubing 4link that has 2x2 bottom bars that have a 14 wall thickness. The 4 link calculator allows you to design, cost, and order complete linkages of multiple different styles, length, sizes and configurations.
Universal rear 4link kit daves customs unlimited, llc. Whether it is for a jeep, rock bouncer, rock crawler or even a. The four link rear suspension shown in figure 4 three link front left and four link rear right uses four primary links and no secondary links. Dec 26, 2015 on this episode of rock rods tech jake burkey teaches us about the dos and donts of building a double triangulated 4 link suspension. From heidts and ridetech, to detroit speed and helix, and many more, summit racing carries a massive selection of fourlink suspension kits from the most trusted brands in performance suspension.
Including genuine currie johnny joints not like what is used by our competition, 4 x. It worked great until i blew it apart for painting after shaking it out for three months. Please practice handwashing and social distancing, and check out our resources for adapting to these times. I am putting a triangulated 4 link in my 71 duster and i understand all the geometry for a 4 link but i am wondering if there is an advantage of having the top bars angle from the center of the axle to the frame rail over having the bars come from the axle to the center of the vehicle via a cross member. Mock up the suspension using the 4 link bars to locate the triangulated frame mounts. Ridetech triangulated 4link systems 18987999 free shipping.
There are many thick textbooks, expensive software, and hundredpage internet forums out there on the subject of 4link geometry and it is very. Pressing the edit button immediately switches to edit mode listing more details about the dimensions of the model and allowing you to alter the model by dragging any of the tether points. This document, the associated hardware, software, drawings, and other material. The universal triangulated 4 link enables you to install a hightravel rear suspension using a minimum of components and custom fabrication. Note the two pairs of links, the coilover shocks and their mounts, and the panhard bar in the rear. This 6372 c10 rear back half kit by choppin block allows you to lay frame, all while gaining better geometry and strength. Apr 6, 2017 the triangulated 4 link rear suspension. One of the issues with a triangulated 4 link, always seems to be the space and clearance they require to have them work correctly. If you are on the market for a more indepth, customizable 4 link suspension calculator, you will likely need to purchase software. Installation instructions 19551957 chevy triangulated 4link. Take a look at performance trends calculators here. Conversely, parallel style 4links utilize a panhard bar to keep the axle centered.
I wouldnt rush right out and start changing 4 link geometry. Suspension geometry software for purchase if you are on the market for a more indepth, customizable 4 link suspension calculator, you will likely need to purchase software. I feel a 4 link is superior to ladder bar, but more time. How to choose a custom suspension, building a double triangulated 4 link, plus rock racing from jellico, tn. This is what keeps the rear axle centered under the vehicle.
We can make a triangulated 4 link to the specifications of your frame and chosen rear end. It will take some time sitting under your rig seeing what you have to work with and playing on the 34 link calculator. The triangular layout of the top links resists sideways motion, and the lower links resist thrust. Triangulated 4 link question for a bodies only mopar forum. Position rear end housing in place with 4 of clearance between top of axle tubes and bottom. I am trying to model a triangulated 4 link suspension setup and am having difficulties in setting up the joints. The 4 link calculator lets you input, view, save, analyze and compare your 4 link rear suspension geometry. Since reassembly, i can feel it bounce and skate through bumpy corners. The image above shows the parts of a 4 link suspension system, laid out as it would be installed on the rear chassis and axle housing.
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