Why It Might Be Time To Upgrade Your 4Runner’s Bump Stops
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- Опубликовано: 18 сен 2024
- In todays video we go over why I made the decision to replace my OEM bump stops and get some brand new Durabumps. So far, I love them! They are an awesome length for the 4th gen 4runner and really compliment the rest of the suspension setup. Many people overlook their Bump stops when they do their suspension lifts, and in return, jeopardize their hard earned components - don’t be that person!
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Two great ideas I've gotten from you. One was the roof rack light bar installation and the second were the bump stop upgrades. Thanks for sharing your beautiful 4th gen 4Runner with us. Now, if I could only keep mine as clean as yours.
Awesome! I’m glad you’ve found some of these ideas helpful! Lots more on the way :)
Great choice with the DuroBumps!
Right! I’ve been really happy with them this far.
you do NOT need to extend bump stops for any properly designed lift including those fox coilovers you have. only for shitty spacer lifts and rough country struts that have a compressed length that is too long. putting longer bump stops on when not needed is just willingly loosing out on much needed suspension travel.
Keep in mind there are different applications that will affect someone’s need for travel. Generally speaking, I have found extending my bumpstops to work well for the conditions that I drive in and has helped to extend the longevity of my shocks. With 35’s and driving a lot of washboard roads with considerable load in the rear, I have depended on the bumpstops to prevent my tires from going through my fenders and also limiting the harsher hits. Spacer lifts have got to be the worst things ever created - we can totally agree on that!
I bought ES bumpstops and they are shorter than the stock, but I don't off-road so I figure it just gives more unrestricted up travel. Actually seemed a little less stiff than before. I run Bil 4600/FJ springs/.5" spacer.
Totally! Some people want that uptravel so they don’t restrict it with longer bump-stops - whatever works best for you. Sounds like an awesome setup!
Great video! I actually just did mine and it made a huge difference! Do you plan on doing the rears?
Thanks Chris!!
I am finding mine also made such a big difference. The rears are in the mail - another video on the install and result coming soon!
@@looseaxles
Awesome! Can’t wait.
I plan to do mine as well. Your channel has been really helpful to me. Thanks for providing all the great content 😁
What a generous comment! Made my day! Thanks so much for watching!
You should anti seize those bolts. They snap all the time
No threadlocker then?
@@JonFox1945 not needed
Im moving to a 285/75r17 soon. Currently 1.5" lift, won't go higher than 2". I just need to know how much uptravel I need to limit so those tires dont hit the fenders, if they do at all
Awesome! That added height makes a big difference. It sounds like some extended bumpstops will definitely make a good difference.
Did you measure how close your struts were to bottoming out before and after changing the bumpstops?
I did not! I just considered the additional height.
How did you know the RIGHT HEIGHT for that rubber bump? or just WAG?? Thanks
I suppose any height is better than nothing to prevent a crash of metal-on-metal. The short answer is any height is truly acceptable. Any little bit of rubber which compresses and prevents this contact is doing the main job.
Only on certain bump stops (front or rear) do you have choices regarding height unless you shave down the rubber yourself for a custom fit.
For rear height bump stop suspension selection, you can use a rough rule of thumb the durobumps used here will compress 1/2” max until the hard stop. For other bump stops like Sumo Springs and the grade (blue, black, yellow, etc. colors), you may get more travel/ compression of that material but you are still dealing with eventually a hard stop in compression.
The height of the specific rear bump stop installed here can be selected depending on how soon you want to limit up travel to prevent a potential crash of the actual wheel into your fenders and wheel well. The higher the bump stop, the sooner it will engage and compress to its limit making for a hard stop. What competes against this are other things compressing to the max like your leaf or coil springs where they aren’t doing the job it was designed for. For example, one important factor is to not exceed the total compression of the shock itself. If your shock piston goes all the way into the shock body and beyond on full compression and the bump stop has not yet engaged to its max, you will damage (likely destroy) that shock.
Lastly, the height of the specific rear bump stop is dependent on how soon you want to engage to a hard stop on that wheel and how this might lever your vehicles suspension to force the other wheel to articulate. Imagine if you slowly wheeled up a ramp on your rear driver side wheel only and the rear bump stop was super tall. You would immediately engage that bump stop and it would begin to push your vehicle’s weight over to the other side or until weight equilibrium is reached on all tires. Where there is a solid rear axle involved, this may cause the rear tire in opposite position to react in an odd, not so good and predictable way. For the amount of range of height variability on rear bump stops it isn’t a big factor to consider but something to think about with use (or elimination) of spacers, etc.
The bottom line is think about how your suspension components work together or against one another and make smart, informed choices where you can. Think about the speed of movement or literal impact on the bump stop and what this will do to your ride comfort and performance. There is ultimately no one-size-fits all scenario for all bump stop considerations.
a lot of aftermarket bumpstops compress more than factory. they are way softer and no way to tell when they stop. total chaos recommend leaving the stock ones for this reason.
I know a few guys who have built extensions for this reason using square pipe etc. Definitely an option! I personally was pretty happy with the build quality of the Durobumps in comparison to OEM and felt confident in them. If I was jumping the truck or anything where I was continuously working the bump-stops through repetition, I would most likely go hydraulic over rubber.
Hmm.. but, I don't want to lose suspension travel. Would this not limit that though?
Great question!
Bumpstops don’t limit “regular”suspension travel, but rather return your factory bump position back to normal. Realistically, without bumpstops all the strain of the suspension is forced on the shock. On larger hits and full compression, this means that only the shock is your end of travel resistance. Without the proper bumpstops, you’ll wear through your shocks way sooner. With them, you regain an end of travel stop that takes the brunt of the force instead of your shock. This is especially important if you run larger wheels and don’t want your wheels travelling up into your fenders.
Can i replace or are they same if i put that in my 2017 toyota fortuner?
If you are lifted, I would recommend getting extended ones!
How do these compare to perry partsbump stops. They are significantly cheaper
Hey! I’m honestly not too sure. I hadn’t heard of Perry’s until you just mentioned it. I can only speak to the quality, fit, and customer service of Durobumps which has been phenomenal.
Did you still have the stock strut/shock when you replaced the bump stop?
I replaced them after I lifted my truck!
Hammer and a chisel would help loosen those b.s. ask me how i know from the rust belt.
Such a difficult job!
In thinking between these and wheelers , did you torch the hole bumpstop to help it come out?
Just the bolts! For the fronts I soaked them in penetrating fluid as well.
Should I change it even if I gave stock height? Will it help anyways?
Hey Tommy! Personally I’d say the stock bumpstops are great if you are running stock height.
@@looseaxles ok, I will change them out then. Still running those stock xres shocks and struts. With 213k miles. Thinking of upgrading it to bilstien brand. Which I had them installed in my 06 tundra which was really nice for stock setup.
Since we r talking about the 4Runner, can the rear differential slip? I have a issue with a slip from stop and go between 1st and 2nd gear. And sometimes it don’t slip. I feel like it’s coming from the rear. But not sure.
Durobumps vs SSI Sumosprings?
Now that’s a debate! After a bunch of research I went Durobumps for my application! I know a few guys who enjoy their sumos.
Is the bump stops connected to the body?
Frame.
Is it bad if the front left tire hit the fender so hard that it cracked the windshield? Just wondering what could be wrong now, that the windshield is cracked. What could be damaged in between the tire and the windshield?
Could the frame be bent? Any way to fix it?
but did you lift or not?
I do have the truck lifted 2.5” all around!
who thinks $250 for rubber bump stops is cheap?? Sheesh.
Wait till you see the cost of hydraulic! It’s not horrible on sale, and way less than a bombed out suspension.
I’m doing it to my 2nd gen yoda
Its my project and this is a cheap upgrade $200
A no brainer! Best of luck with the build!
$200 plus for rubber
It’s a cruel world we live in!
I blame feminism 😂, women are 80% of consumers
Can you send a link where you buy your bump stop?
durobumps.com/?fbclid=PAAaasrw_aVp0nAFD-arbQG4h3JtiisvxkhHDrOsvgTmDqPmKKMMTUWKPb-6c
$250 for poly donuts, lol. Just get Energy Suspension for $30.
Different strength ratings and lengths. You can use stock ones for free and build extensions too 🤙🏻
lecturing people on how to use channel locks?
*sighs*