Diesel bump stops and hydro bump fitment

[Escape.idiocracy]

I have recently learned that the jounce tubes on diesel, 392, and XR are 1-3/8" longer than v6 and 2.0t models (JL&JT)

This definitely explains the crazy short up travel…. I am curious though, has anyone pulled the springs before a lift and articulated to verify how much bump is actually needed?

Before I catch the non productive comment in regards to jeep engineers…. Blah blah….

like most- I would like to keep the lowest lift practical, which already reduces up-travel….

Anyone add Fox /king hydro bumps to a diesel- can you confirm how much joust was cut off to fit?? Everything I have seen- there isn’t an addition 1-3/8” length to the hydro bump shaft to allow for adjustment. Leads me to believe that, this much more needs to be trimmed from a diesel vs gas….. anyone confirm? And with that- were bump stop extensions added to make up for the joust chopping required? Meaning the 2” normal extensions- now need an additional 1-3/8” added?

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[Escape.idiocracy]

?

pretty sure I found part of my answer on kings/e install sheet.
https://www.dealer.evomfg.com/technical-docs/EVO-600081.pdf

3” from under side of the spring mount down the joust- cut.

This does still leave me with the question, if I’m going to have to add 1-3/8” to the bump pad.

opinions welcome…. Likely won’t know until we get to cutting and flexing to verify Fitment.

 

[Rusty PW]

I did the JKS hydro bumps with the adjustable spring seat. These add 2" of lift by themselves. In the picture you can see where I cut. Just above the weld. I bet Fox/King want you to cut in the same spot.

 

[Escape.idiocracy]

I did the JKS hydro bumps with the adjustable spring seat. These add 2" of lift by themselves. In the picture you can see where I cut. Just above the weld. I bet Fox/King want you to cut in the same spot.

How was clearance on axle- pan etc after cutting? It’s raining and pretty crappy this weekend- was hoping to catch a break and pull the springs to see how much clearance is going to be needed….. seems like the were very conservative with minimizing the up travel on the diesel…..

 

[Rusty PW]

How was clearance on axle- pan etc after cutting? It’s raining and pretty crappy this weekend- was hoping to catch a break and pull the springs to see how much clearance is going to be needed….. seems like the were very conservative with minimizing the up travel on the diesel…..

I'm using a 2" bump stop on the axle with 4" of lift. That keeps the 37" tire from rubbing the fender.

I figured what I cut off in length of the tube was replaced with the bump stop and maybe a little more.

The sleeve is about 1/32" longer than the cut tube.

 

[Rusty PW]

You could use the JKS kit with the stock diesel springs to get you 2"+ of lift in the front and then you could use 2.5" springs in the rear.

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