Eco diesel Suspension bottoming out on normal roads

22EcoDs

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My metal tube is just over 5&1/2 inches. I couldnt get a good pic of it. But I did get my bumper height and shock number. Again, this is a stock 22 S Looks like I have the same distance to stop as @OrangeCJ . Do my shocks differ from 21 S?
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CreepyJeepy

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The metal tubes on mine measure at 6.25”

I used a metal ruler touching the top of the spring perch the metal not the coil isolator (making sure I am measuring the entire length of the tube) camera was level when I took the pic.

C9C8E907-F276-409A-9F0F-8D232AF401D0.jpeg
 

22EcoDs

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The metal tubes on mine measure at 6.25”

I used a metal ruler touching the top of the spring perch (marking sure I am measuring the entire length of the tube) camera was level when I took the pic.

C9C8E907-F276-409A-9F0F-8D232AF401D0.jpeg
Thats interesting, I wonder if they made the tube shorter and bumpstop longer? Now I want to measure with a ruler instead of tape, I wonder if I was bound up on a coil.
 

CreepyJeepy

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Either way, if your measurements are right that means there is really no fix besides a higher ride height for the 21’s.
 

PackMule

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Thats interesting, I wonder if they made the tube shorter and bumpstop longer? Now I want to measure with a ruler instead of tape, I wonder if I was bound up on a coil.
Thanks @CreepyJeepy, @SargeDiesel I think its VERY important for us to get some good consistent reference measurements here.... I'll explain why down below.

Sarge, you state your uptravel is 2.5", but looks like you are only counting to the lip of the new gray collar. If you include the width of the new collar, you are over 3". On the 2021's its only 2.5" from the strikeplate to the metal lip of the coil tower. Also, can you check to make sure you are measuring in the same way Creepy is measuring.

@CreepyJeepy, are you sure your 6.25" is at the lip of the coil tower?... in your pic it looks like there is metal below the 6.25" length. Might just be the pic.

****** Why This Is Important: *******
EVERY jounce bump manufacturer's install instructions include directions where to cut the coil tower back to. If there are different coil tower lengths from Gas vs. '21 Diesel vs. '22 Diesel, people will be cutting up their jeeps in the wrong place, and possibly exposing themselves to damage. I don't think the aftermarket manufacturers know this. Many may not have had an ecodiesel in their shops, and even if they did, might not know a difference made between model years.
 

CreepyJeepy

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Yeah I agree. This is really important.

Also I am wondering if the tubes are longer on the 21 because of interference issues somewhere between the axle and engine and that issue has been solved on the 22.

I measured again and the total length is a tiny bit 1/8” at most longer than 6.25

the end of the ruler has about 1/16” before the measurements start

My length is likely 6.28” total

measured driver side
 

SargeDiesel

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Thanks @CreepyJeepy, @SargeDiesel I think its VERY important for us to get some good consistent reference measurements here.... I'll explain why down below.

Sarge, you state your uptravel is 2.5", but looks like you are only counting to the lip of the new gray collar. If you include the width of the new collar, you are over 3". On the 2021's its only 2.5" from the strikeplate to the metal lip of the coil tower. Also, can you check to make sure you are measuring in the same way Creepy is measuring.

@CreepyJeepy, are you sure your 6.25" is at the lip of the coil tower?... in your pic it looks like there is metal below the 6.25" length. Might just be the pic.

****** Why This Is Important: *******
EVERY jounce bump manufacturer's install instructions include directions where to cut the coil tower back to. If there are different coil tower lengths from Gas vs. '21 Diesel vs. '22 Diesel, people will be cutting up their jeeps in the wrong place, and possibly exposing themselves to damage. I don't think the aftermarket manufacturers know this. Many may not have had an ecodiesel in their shops, and even if they did, might not know a difference made between model years.
@PackMule I'm not sure where your geting I said my uptravel was 2.5... this is actually what I said:

***"Just for more info for comparison, the measurement of the travel distance between the lower bump stop plate and the upper bump stop housing lip.(3-11/16")"***


I also took my measurement from the top of the bottom bump plate(strike plate) to the metal lip of the bump stop housing(I believe what you guys are calling the tube) *See pic

Referring to the same picture, I'm actually 3" at the gray bump stop collar lip, not 2.5"

I have never measured the tube length, but I can do it tomorrow in some good daylight. Has anybody else done a measurement on a 2022 tube for comparison ?

??? Maybe got me mixed up with another post ???


Jeep=TravelDistance:BumpStop-Far.jpg
 
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james2021dieselglad

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So... a Bad News update on my end...

JeepCares declined doing Mopar lift, stating its too close in time to when the TSB fix is coming out. Bummer for me, as I've been waiting over a year with this problem, and am worried after 25k miles on the truck I might have incurred collateral damage from the hits, even after babying this thing for a year.
Which means we are getting a fix which won't be the mopar lift but some half asses band aide. Terrific
 

PackMule

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@PackMule I'm not sure where your geting I said my uptravel was 2.5... this is actually what I said:

***"Just for more info for comparison, the measurement of the travel distance between the lower bump stop plate and the upper bump stop housing lip.(3-11/16")"***


I also took my measurement from the top of the bottom bump plate(strike plate) to the metal lip of the bump stop housing(I believe what you guys are calling the tube) *See pic

Referring to the same picture, I'm actually 3" at the gray bump stop collar lip, not 2.5"

I have never measured the tube length, but I can do it tomorrow in some good daylight. Has anybody else done a measurement on a 2022 tube for comparison ?

??? Maybe got me mixed up with another post ???


Jeep=TravelDistance:BumpStop-Far.jpg
Right, my bad, that was @22EcoDs that said his '22 Sport had the same 2.5" uptravel as OP. He also said his coil tower was at ~5.5", which appears to be 3/4" shorter that what CreepyJeepy measured on the '21. So you could compare/verify yours with 22EcoDs measurement above.
 

CreepyJeepy

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if there is a part number for the frame on the 22 vs vs 21 I’d like to know if it changed
 

SargeDiesel

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Right, my bad, that was @22EcoDs that said his '22 Sport had the same 2.5" uptravel as OP. He also said his coil tower was at ~5.5", which appears to be 3/4" shorter that what CreepyJeepy measured on the '21. So you could compare/verify yours with 22EcoDs measurement above.
No worries, there is a lot of information going around. Is there a certain location to measure the coil tower from ? I cant really tell where where Creepy and Eco measured from, like you said important to have a standard.
 

SargeDiesel

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if there is a part number for the frame on the 22 vs vs 21 I’d like to know if it changed
where is it located ? I'll check tomorrow for you if I can find it.
 

PackMule

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Yeah I agree. This is really important.

Also I am wondering if the tubes are longer on the 21 because of interference issues somewhere between the axle and engine and that issue has been solved on the 22.

I measured again and the total length is a tiny bit 1/8” at most longer than 6.25

the end of the ruler has about 1/16” before the measurements start

My length is likely 6.28” total

measured driver side
Thanks for the double check.

Yeah, I'm wondering same as you... did they change/move something else on the '22 EcoD's that might have been interfering with the axle travel on the '21s ? What else do we not know about?
 
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