Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. -Wikipedia

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1answer
22 views

What Springs do i need to drop 3"

My current springs have a rate of 360lbf/in and unfitted 420cm in length. Fitted to the car they are 350cm in length. What lbf/in do i need so that the car sits 3" lower ? I'm considering a spring ...
2
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2answers
38 views

Damage to shocks over speed bump

There was a poorly marked speed bump on the way into the mall and I hit it going probably 15mph over the rated speed. It was a small speed bump (not those humps that induces rocking, ~1 feet in ...
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0answers
33 views

Not an engine noise

I have a 01 Montero that has been making a reeking/squeaky type of noise coming from the rear of vehicle. I have lubed everything there is and have installed new shocks and air bags. Doesn't seem to ...
5
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1answer
61 views

Slow speed crunch/pop sound?

Having this issue that started recently. Hearing and feeling in the steering wheel and pedals crunch/pop sound when rolling slowly. On/off brakes doesn't seem to matter. In gear/off gear doesn't ...
6
votes
2answers
92 views

How does hydropneumatic suspension perform vs conventional suspension?

My stock Citroen BX is equipped with hydropneumatic suspension. I have a ser of xantia suspension spheres mounted which brings the pressure up to 70bar vs the standard 45. My question is, how ...
5
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2answers
4k views

Which will have longer lifespan: stock or urethane bushings?

Background: this is in reference to the previously mentioned 2004 Subaru Impreza WRX Wagon. This isn't a track car: it's only for fun street commutes and general Daddy duty. The car has upwards of ...
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0answers
52 views

Why do some 2 wheelers have an attachment to their fork [closed]

I've noticed some two wheelers. Non geared to be specific that they have a different fork. I am assuming this to be for protection. But did not find a lot of references.. Does anybody know if ...
3
votes
1answer
24 views

Honda Jazz 2007 1.4 Dsi CVT

My Honda Jazz is in for 195,000 km service, Bosch service centre contacted me and said that my Control Arm Bushings are worn, but they need to replace the entire control arm as the bushings are not ...
4
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0answers
18 views

2000 Ford Taurus ABS reluctor ring grinding on lower ball joint

My Taurus started to make a grinding noise in the front. When I looked at it I could see the ABS reluctor ring was grinding on the lower ball joint. My plan is to replace the axles/reluctor rings, but ...
6
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1answer
98 views

Fixing vibrations caused by replacing springs?

I am slowly restoring a 2000 Jeep Cherokee Sport with 97K miles to use as a winter/light towing vehicle. I had some sag in my coil springs and leaf springs and the shocks were shot. So I had my ...
3
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1answer
117 views

How does mounting +1,+2 and +3 affect your vehicle? [duplicate]

The title is pretty self descriptive. It's common practice to equip your vehicle with bigger rims simply to achieve aesthetically pleasing looks. Although I'm against modifications exclusively for ...
10
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2answers
86 views

How Important Are the Rear Shocks / Struts

When people talk about changing the shocks or struts, it's usually the front ones due to comfort, handling and safety reasons. But what about the rear ones? How much of a problem are worn out rear ...
5
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2answers
80 views

Suggestions for refinishing suspension springs

Can anyone suggest a tried and tested method for refinishing suspension springs. The springs I have at the moment have shed their protective coating which I assume was some sort of powder coating? ...
3
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1answer
43 views

Aftermarket Pneumatic Suspension - Pro's and Con's

I am trying to estimate the feasibility of installing an after market pneumatic suspension (called sometimes air bags suspension?) for a VW Tiguan. The Touareg, for example, has a factory optional ...
22
votes
7answers
100k views

Is it safe to drive a car that has a broken suspension spring?

Yesterday I was driving home from work and heard a loud noise which I can only really describe as a "clang". After looking at it today, it looks like the spring for the front left (passenger side) ...
6
votes
1answer
32 views

Should a suspension air bag be changed after so many miles?

I've referenced several manufacture sites (such as Firestone & Slam Specialties) to find any verbiage on their site's but I was unable to find if air bags for a hot rod should be changed after so ...
6
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1answer
48 views

Hydropneumatic suspension ride height

My Citroën BX has various ride heights since it works on hydropneumatic suspension. How safe / smart would it be to drive using the lowest height VS the medium ride height? pics for comparison
5
votes
2answers
69 views

Why is there a trend towards cantilevered rear wheels in recent motorcycle designs?

In looking at the new motorcycle designs that are coming out in roughly the last decade or so, there seems to be a trend towards the cantilevered rear wheel. My question is what are the advantages to ...
5
votes
2answers
758 views

2008 Jeep Wrangler - Suspension squeaks

The suspension on my 2008 Jeep Wrangler squeaks when I hit a low spot (maybe 4-6" from the grade), even at slow (<10 mph) speeds. Where can I lubricate or what should i check to eliminate this ...
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2answers
52 views

05 jeep wrangler rear sway bar connection is broken

05 jeep wrangler .The link that connects my rear sway bar to the rear end housing. What's it called. where can I buy a replacement. To be welded or fit in.
5
votes
3answers
307 views

Questions About the “Death Wobble”

I have a 1999 Jeep Wrangler (4 cyl) that has been infected by the infamous "Death Wobble". If this term is too slang then here is an article that can explain it better than I could hope to. I would ...
7
votes
3answers
1k views

Pros and cons lowering sedan?

Thanks to the community here I have successfully fixed my overheat problem, so I'm moving on to another problem...lowering the 95 camry. The method I'm planning on using to lower it is by adjusting ...
6
votes
1answer
63 views

Why are shock absorbers in wishbone suspension systems mounted on the lower control arm?

Is there any particular reason (relating to the sprung mass) for having this kind of setup? I am yet to see a wishbone suspension with the shocks on the UCA.
10
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1answer
136 views

Motorcycle Speed Wobble - How do I figure out the problem?

I have a 2005 GSXR 600. I took it for a test drive and the head shakes around 65mph or so and then goes away when I go past that. It's worse when I'm slowing down without the front brake. When I ...
10
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5answers
11k views

Is it better to drive across a speed bump at a right angle or slightly skewed?

I'm wondering if it is better for your suspension to drive across a speed bump at a right angle (so that the two front tires and the two rear tires hit the bump at the same time, respectively), or at ...
6
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1answer
798 views

Do springs wear out?

I will be replacing the struts and shocks on my car soon. I did them last about 80000 km ago, but at that time I did not replace the springs. Do springs wear out over time? Should I replace them ...
6
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1answer
48 views

Alignment and Lower Control Arm Bushings

I replaced my struts, strut mounts and tie rod ends, then went and got an alignment before taking my car to it's inspection. At the inspection, they found that the nuts for the tie rod ends hadn't ...
9
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3answers
108 views

Effects of sway bar stiffness on rough, uneven roads

I just read a really nice write-up on sway bar physics. I also watched a video discussing suspension behavior on rough roads. Let's assume the following: A front-wheel drive vehicle being driven ...
5
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2answers
5k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
3
votes
1answer
617 views

My ER6 was lowered to accomodate a shorter driver than me. How can I adjust the height?

I want to adjust the height of my Kawazaki ER6n from 2006. Specifically, I want to reset the height to factory settings. Is this something that's possible to do without hiring a certified mechanic or ...
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1answer
206 views

Car shudders above 45 mph after a spin out into a ditch

I spun out in freezing rain and ended up in a ditch. I was doing 60 down to 45 when it went all the way around and on to the shoulder, which was soft dirt and buried the front tires. My vehicle is a ...
5
votes
2answers
17k views

If one coil spring needs replacing, do I need to replace both?

I just had my car serviced and they discovered that the front, near side coil spring is "incomplete" and needs replacing. I'm getting conflicting advice about whether I need to replace both front ...
7
votes
1answer
78 views

How bad is this strut mount damage?

I noticed a crack in the strut mount rubber of my 1999 Volvo v40. The suspension often creaks when going over speed bumps (and sometimes it doesn't) though I'm not sure it's the fault of this mount. ...
6
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1answer
60 views

When installing air ride suspension how is pinion angle set on the axle?

Saw we had a Motor Vehicle Stack and I thought it would be fun asking some hot rod related questions. One issue I've always faced in building a hot rod truck is determining how the pinion angle ...
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0answers
22 views

Lower control arm mounting bolt replacement size. 2004 Mazda B3000

Need to know what size bolt for Mazda B3000 lower control arm mount
5
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0answers
36 views

Is a parallel 4 link safe compared to a triangulated 4 link?

After researching the topic the closest article I've ever been able to find was written by Ridetech: "What’s the difference between a triangulated 4 link and a parallel 4 link?". However, a concern ...
3
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1answer
129 views

My Ride is Still Very Bouncy after Changing the Struts and Strut Mounts

I just changed the front struts and strut mounts on my 98 Mazda 626. The old ones were completely shot. While I noticed an improvement in the ride, it wasn't nearly as much as I expected, and quite ...
4
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1answer
36k views

How to tell if the Control Arm is bad too, or just the ball joint

I have a 1997 Ford Expedition 4WD truck that has a LOT of wiggle on the front left tire. I'm assuming that this is caused by a bad ball joint. Is that a safe assumption to make? Assuming that it is, ...
7
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2answers
445 views

what are the advantages of upside down forks

Recently I have come across many bikes which have upside down front forks. From browsing around the internet , I was not able to get a concrete answer for why it is preferred over conventional ...
3
votes
1answer
557 views

Why is my 2004 BMW z4 front suspension making noise?

Every time I go into rough terrain, specifically bumps or speed bumps, there is a thud sound from the front end. Thinking it might be the bushings but I'd prefer not to purchase without confirmation. ...
4
votes
2answers
430 views

Clunking Noise from Rear, Right Tire when hitting bumps

I have a 2003 Ford Taurus SE with ~95000 miles. It has been a very cold and harsh winter in New England. Recently, I have been hearing a clunking noise in the rear, right tire region when hitting ...
8
votes
1answer
107 views

Ohlins Rear Motorcycle Shock - How do I setup, care for and tune it?

I have a 2005 GSXR 600 I'm getting on the road. I bought an Ohlins rear shock for it and ordered the spring to match my weight. I can't figure out the low/high speed or the rebound/compression ...
10
votes
2answers
753 views

What bolt is a replacement for the front sway bar bolts on a 2004 Subaru WRX wagon?

In replacing my worn-endlinks recently with lovely Kartboy pieces, I noticed that I had a seized bolt in one of the rear links. I was able to get a short-term replacement until I order a new Kartboy ...
3
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0answers
41 views

What Damage may Accompany a Broken Axle

I was looking at buying a 98 Honda Shuttle with a broken right side axle, and was wondering what other damage I should keep my eyes open for which might normally be seen together with a broken axle.
10
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2answers
75 views

Do I need to replace both front struts if one is OK

I have a car that is 7 years old and unfortunately hit a curb which bent the front strut on the drivers side. Do I need to replace both struts? Or just the damaged strut? It is similar to this ...
8
votes
2answers
742 views

Motorcycle chewing through too many front tyres

I have a Y2K Triumph Speed Triple that has an excessive appetite for front tyres. It eats two front tyres for each rear tyre. This is reverse what it should be. I run the tyres at about 38 PSI and ...
8
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1answer
68 views

How do I get the sway bar link to line up with new strut and spring?

I am swapping the struts and sway bar links on a 2006 Toyota Sienna AWD. I got the first strut in place and started to put the sway bar link on but it does not want to line up with the mounting hole ...
5
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2answers
1k views

How to improve suspension on my 2005 Volvo S60?

I recently purchased a 2005 Volvo S60. The car runs great, but I've discovered that the suspension feels a bit stiff. When I go over a bump, I get shaken up a lot more than I do going over bumps in ...
7
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1answer
75 views

Displacement sensors for car wheel and datasheets

Probably title says it all, but I am on my design work for car suspension and cannot find a good displacement sensor for each of the wheels of the car. I tried to look up for accelerometers, which can ...
5
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1answer
44 views

What Front End Work Requires an Alignment Afterwards

What Front End Work Requires an Alignment Afterwards and in what case can you take measure to avoid having to do an alignment? For example the Haynes manual says you can mark the strut mount and the ...