Reliable lift height measurements

[JTGuy]

Been trying to find reliable lift height measurements . Something that is easy and constant. Like front shock mount bolts center to center. Something that takes the body and tires out of the measurements so no measure to the ground. A measurement that will be easy to see what you will have compared to what you now have.

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[Vtur]

Top of axle tube to bottom of frame can be used for both front and rear.

 

[Wheelin98TJ]

Coil perch to coil perch makes the most sense to me.

 

[Zachanadandy]

Why though? As far as comparing what you have now to what you will have it's useless. Almost no springs I've ever installed were exactly their listed height installed. One company's 3" spring may sit a full inch or more higher than the next company's. If it's to measure your actual difference (in my opinion the only number that matters), any repeatable before and after measurements will work. That being said, spring perch to axle in the front is how the JL guys do it. 10 7/8" is generally stock rubicon height but even that varies by an inch or more.

 

[JTGuy]

Measurements would be good to know when buying shocks or making changes like new different springs.

 

[TheSolarWizard]

Coil perch to coil perch makes the most sense to me.

This is the way to do it

 

[Zachanadandy]

Measurements would be good to know when buying shocks or making changes like new different springs.

Who's measurements? Unless the other guys rig weighs exactly the same as yours, his measurements on a given spring don't mean much to you? His shock measurements mean even less. Your compressed length shock eye to shock eye at full bump are critical...to you. I still don't see the need for a consensus on where to measure? Why? Bragging rights between you and the next guy?

 

[Wheelin98TJ]

Who's measurements? Unless the other guys rig weighs exactly the same as yours, his measurements on a given spring don't mean much to you? His shock measurements mean even less. Your compressed length shock eye to shock eye at full bump are critical...to you. I still don't see the need for a consensus on where to measure? Why? Bragging rights between you and the next guy?

Anybody's measurements. Rigs don't have to weigh the same. You can extrapolate and figure things out.

I kind of wish I knew my actual lift height so I could pass along accurate info to people who ask.

A consensus on where to measure brings consistency and easier collaboration.

 

[Zachanadandy]

Anybody's measurements. Rigs don't have to weigh the same. You can extrapolate and figure things out.

I kind of wish I knew my actual lift height so I could pass along accurate info to people who ask.

A consensus on where to measure brings consistency and easier collaboration.

Sure you can extrapolate if you have full build details or even better the weight of their rig and the weight of yours. With that much detail and dealing with someone who cares enough to weigh their rig, I'm pretty sure they could just tell you where THEY measured from and you do the same? On the JL forums there's a lot of shock eye to shock eye measurements, that seems to work. Or the spring perch lip to axle tub like I posted? I just don't see the value of coming up with some "we all have to measure here" consensus? Most people can't read a damn tape measure anyway.

 

[Gizmo]

Glad it wasn’t this difficult to do simple things on a TJ. Maybe because we weren't as old and cranky then

 

[Rusty PW]

Why though? As far as comparing what you have now to what you will have it's useless. Almost no springs I've ever installed were exactly their listed height installed. One company's 3" spring may sit a full inch or more higher than the next company's. If it's to measure your actual difference (in my opinion the only number that matters), any repeatable before and after measurements will work. That being said, spring perch to axle in the front is how the JL guys do it. 10 7/8" is generally stock rubicon height but even that varies by an inch or more.

You have this measurement for the rear, and location?

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