Measuring Shocks: What size shocks do you need?
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- Опубликовано: 9 июл 2024
- Parts:
Bilstein Front Shock 3-4" of lift: amzn.to/2j6TxpY
Bilstein Rear Shock 3-4" of lift: amzn.to/2xRQjK7
87-95 Wrangler YJ 0-2" lift: amzn.to/2f9tSf0
How to measure shocks.
In this video, I show how easy it is to measure your vehicle for the proper size shocks. We figure out the compressed and extended length you need for your vehicle. It's easier than you think, so give it a try!
Here is a link to the triangle calculator I used in the video:
www.calculator.net/triangle-ca...
As I mentioned in the video, you need to find the angle of the triangle near the bump stop. To do this, just put the 3 lengths of the triangle into the calculator and it will give you the angles of all the corners.
Next, erase the figures in the calculator and replace them with the one angle by the bump stop, the shortened length on the axle side, and the length from the bump stop to the top mounting point (which should be the same). The calculator will give you the length of the shock at this compressed length now.
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Be sure to check out my video Measuring Front Shocks:
• Replacing shocks: How ...
Here's the video on Installing Shocks:
• Jeep shocks: installin... 
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9 foot? Back to school , one mark is foot and 2 is inches! Lol. Erased it fast as you drew it ! Just giving you shit , really appreciate the help ! Needed this short and sweet video ! ✌
Great video, very straightforward.
So Geometry class did serve a purpose. Thanks again.
+3hdninja Sure did ;)
it is actually trigonometry
i like the simplicity. thanks you.
I had rear shocks installed on my yj and only 2 inches of the rod is exposed at ride height. Is this correct?
This is so correct. Makes you no longer wonder....just know that many lifted Jeeps you see everyday... have the wrong shock size.
Hi does this calculation work for inverted rear suspension?
Suddenly I'm back in geometry class. I guess the question of "when am I ever going to use this" has been answered.
BroncoSolid It's ok, you can have your kids do it for you ;)
OK but how do you know what size shock?? How do you translate those numbers to actually look for shocks??
Lol what happens if you removed your bump stops… i dont do a lot of flexing so i removed them not really sure why. Should i instAll them and then do the measurements like described in the video?
excellent explanation, txs
No problem. Thanks for watching!
do you have the link to the google calculator?
You need a longer brake hose it is under tension when you let suspension hang.
If my teacher did examples like this in Math Class I'm pretty sure I would pay way more attention.
Lol.. That's funny! But true
Me too !
Man this is much more complicated then i figured... soo my Jeep Grand Wagoneer, has shocks that extend only 19.9 inchs.. and with the tires on the ground it measures 19 inchs with my new oem height springs and a 2 inch lift.. So my shocks are pretty much max extended already just sitting on the ground. With the shock off and jeep jacked up so the axle flexs down i measured 21 inchs from mount to mount on the shock. This means my Jeep cant even flex on a pot hole with the current shocks.
So i found on 2-3 inch lift shocks from bilstein that measure 22.7 length, how much extra length do i need over the 21 i measured ? Is 1.7 inchs extra enough on those 2-3 inch lift shocks ? Im less worried about the bottoming out of a shock than i am the shock not extending enough.
He never explained the math😂 he just said put it in google calculator
google did the math for the min size compressed, if you are getting 21 inches from mount to mount that that would be the min size of the shock extended that you would need.
You did not say how much the shock should extend past the lower mount. One inch?
Shoot for 2" to be safe
I guess this a common size, his dimesions was same that my 1998 4runner has.
To hard,,Just jack one side up until the tires is about to leave the ground,,measure that side ,,that would b fully extended,,then measure the other side for fully compressed,,without shocks on it of course,,pretty simple I would think,,you just don’t want a shock to bottom out or fully extend,, your measurements would help you there,,
So I'll be the dummy of the Class but at least I will know wtf I'm doing hopefully.
I asked my Mechanic to measure my Jeep for lift and he insisted the Jeep was Stock.
It's not. Anyways I had bought 0-1" Fox Shocks 2.0 all around.
So now I have the problem of figuring out to get extensions or just get another set of Shocks all around.
Ultimately this is a short term for the Long Picture of a new lift so I know exactly what's in the Jeep.
So the questions this works for a JKU as well...yes?
Matjow7340 w
Do you add an inch to the extended length and subtract an inch from the compressed length as a little extra buffer zone insurance from bottoming out and over-extending?
Could you elaborate on this and break it down precisely as to what to do there.
I'm confused by the answer you gave him.
Thanks
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Reply
rote:
Damn it I knew I should have listened in middle school math class
I'm doing this over and over and still can't make the degree calculation.
Or just jack the frame up. And when your tires starr to come off the ground messure. But im just a wrench Turner
Amen.
The reason to unbolt the existing shock is to confirm maximum length of travel. The old shock may be preventing maximum travel.
Awesome! now I can order my shocks without looking like a fool.
+Oatz Haha! That's awesome!
Are those bilstein 5100s? How do you like them
+Jaybird Foley Yep, Bilstein 5100's. Makes for a nice ride. I like them.
@@JeepSolid what size suspension lift do you have on your yj, I want to use 5100 also but can't find shorter shocks
Do you add an inch to the extended length and subtract an inch from the compressed length as a little extra buffer zone insurance from bottoming out and over-extending?
Yeah, it's a good idea to add a little at the top and bottom to prevent bottoming out.
So what exact math did you use to figure out the number
Once I had the measurements, I used a google calculator to figure it
I’m glad I don’t have leaf springs.....🤔😁
and they said you would never need to know basic geometry again
Why couldn't you just measure the shock compressed and extended..lol
Because that won't always tell you what your suspension is capable of moving to. Your shock could be limiting the suspension movement.
Can you email me the exact formula please
Jesus Gomez The exact formula I used is linked in the description of the video. The triangle calculator. Hope that helps.
Shocks for 6inch lift? I can't math
You wrote 9' (feet)
+Wilverine99 It’s got a lot of lift on it. Haha!! Anyway, yeah. Wrote 9” initially, but then on math wrote 9’(but said inches).