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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3
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0answers
14 views

Why do vehicles handle better with heavy loads?

Inspired by comments here: I'm not the only one who has experienced an improvement in ride and road-feel with a heavily-laden vehicle. I'm recalling a long drive I made a decade ago in my otherwise ...
7
votes
2answers
71 views

How did luxury cars provide smoother rides without active suspensions?

It seems all luxury cars have active suspensions now, so it's not a fair comparison to "non-active" cars. But I was recently driving a mid-2000 Mercedes E-class over the same roads I normally travel ...
6
votes
3answers
66 views

What tire size will provide a softer ride and less oversteer?

I am currently tasked with replacing the tires on my grandparents 07 Jeep Wrangler X with a 225/75/16. To preface this, it will never go offroad! My mom drives my grandma around on Sundays to the mall ...
3
votes
1answer
20 views

Installing Moog stabilizer / sway bar links on 2002 Ford Focus

I am installing both front sway bar links on my 2002 Ford Focus SE wagon. I ordered a pair of "MOOG K80066 Stabilizer Bar Link Kits". They did not come with any instructions, and I am totally new to ...
7
votes
4answers
147 views

“Always Replace” (torque-to-yield) Bolts

I'm working on a VW Jetta and have pulled one of the suspension ball joints to replace a drive shaft. The three bolts holding the ball joint to the lower control arm are marked in the Bentley service ...
4
votes
0answers
17 views

Rough Undercarriage Ride

On my '09 Nissan Titan I get a rough rumbling ride/sound from undercarriage when I get to 40 mph. I have lots of rust issues underneath and lots around the rear drive shaft. Worried that the drive ...
5
votes
2answers
108 views

Thumping/Knocking noise coming from the rear (suspension?)

As of lately my car started to make thumping/knocking sounds whilst driving over speed bumps (at regular speed) I drive a 2001 renault laguna 1.8 16v with about 218,000km (about 135500 miles) on the ...
5
votes
1answer
42 views

Is Ackerman steering solved?

I heard of jeantaud mechanism of steering. does it accomplish the right steering everytime? aren't tyres slipping in any situation? I mean, is it the definitive solution to the Ackerman steering or ...
4
votes
1answer
40 views

Dual suspension to monoshock

I have a Bajaj Discover 135 with dual suspension. I have seen some photos on Google of some people who have successfully done this conversion. Now my question is, what would be the steps to do this?...
3
votes
1answer
35 views

What is this part on a 1997 Chevy Suburban (4WD) [picture inside]?

We have a 1997 Chevy Suburban, 4WD. Occasionally, when turning right (usually from a dead stop) there is a distinct "clunk" sound that comes from below the drivers side floorboard (with an equally ...
5
votes
4answers
139 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 ...
2
votes
1answer
23 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 ...
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vote
0answers
34 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 ...
6
votes
2answers
100 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 ...
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votes
0answers
58 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 there'...
3
votes
1answer
36 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 ...
6
votes
1answer
94 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 ...
4
votes
0answers
21 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 ...
3
votes
1answer
120 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 ...
5
votes
2answers
89 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? I'...
3
votes
1answer
50 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 ...
6
votes
1answer
37 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
votes
1answer
57 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
85 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 ...
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
74 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.
6
votes
1answer
53 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
votes
3answers
171 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 ...
7
votes
1answer
95 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. ...
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0answers
42 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
votes
0answers
37 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 ...
6
votes
1answer
115 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 ...
4
votes
2answers
337 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 ...
11
votes
1answer
197 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 ...
8
votes
1answer
153 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 ...
7
votes
2answers
586 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
0answers
50 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
votes
2answers
110 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 ...
10
votes
2answers
86 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
1answer
83 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
votes
1answer
50 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 ...
7
votes
1answer
106 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 ...
7
votes
1answer
65 views

Magnetic Active Suspension or Magnetorheological Damper

GM developed magnetic dampers for the Corvette several years back. What is magnetic active suspension and how does it work? I understand there is a magnetic fluid in the shocks but how, deep down, ...
11
votes
3answers
421 views

How Urgent is it to Replace Worn Out CV Boots

I recently noticed that what I think are the inner CV boots on my 99 Nissan Almera have started coming apart: They were still in one piece this past August when I took the car for inspection, so ...
6
votes
1answer
51 views

Identifying Suspension Parts on my Mazda 626

This is a continuation of my question regarding What to Check When Replacing Struts, but specific to my 98 Mazda 626 2L. I want to make sure: I've correctly identified the parts What is their ...
7
votes
1answer
139 views

What makes a worn car shock spongy and soft?

I'm unfamiliar with car shocks. In motorcycles many rear shocks are charged with nitrogen which acts like a spring. I've seen motorcycle shocks that I've rebuilt have the correct amount of nitrogen ...
4
votes
1answer
53 views

Wheel Positioning - Camber and Toe

I have a baseline of information regarding camber and toe. Why would I add more or less camber to my wheel unless I'm a NASCAR drivier making only left hand turns and want better traction for that ...
6
votes
2answers
186 views

1988 Jeep Wrangler - How do I do a DIY alignment?

Have a friend with a '88 YJ. He wants us to tackle an alignment job on it. It's pulling to the right. We can see the rear axle is not aligned and tire rubs on one side. It looks like it might be ...
10
votes
0answers
85 views

1968 Beetle Front Shocks (Koni)

What are the correct size Koni front shocks for a 1968 Beetle at stock height? I purchased the (red) Koni D 80-1787 which Koni's site recommended as a stock shock replacement. My mechanic says ...
6
votes
1answer
107 views

Load on bed of pickup for extended period of time

I just got a Toyota Tacoma 2012 Sport long bed. I'm an artist and I make driftwood horse sculptures. I have two horses on the bed of the truck currently which comes to about 500 lbs. I intend to ...