Leveled Avalanche Lightning (Eibach Stage 1 & 35" Wild Peaks)

[AZT9]

The 2.9” is the maximum height setting for the fronts. @HI Zeus bought the shocks only (left OEM springs in place), which Eibach claims is 2.6”, but he also added a leveling puck.

His truck sits higher than mine but we didn’t measure the exact difference…well we grabbed the measuring tape but on my driveway incline, it wasn’t a very good attempt to get the real numbers.

Gotcha thanks. Asked cuz the manual says “extra weight” and have not heard of anyone on the forum trying it out

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[digitaldad]

Yeah, I was just coming back to edit…I thought before it showed an additional height number but maybe I was just remembering the rear specs.

Give the Eibach crew a shout to see if they will actually give some numbers over the phone. I called them twice for other questions and they were very helpful. I’m not sure what on a Lightning would dictate “extra weight” on the front…BUT, I imagine this would be stiffer ride on up/down travel for stock weight, which you wouldn’t want.

 

[AZT9]

Yeah, I was just coming back to edit…I thought before it showed an additional height number but maybe I was just remembering the rear specs.

Give the Eibach crew a shout to see if they will actually give some numbers over the phone. I called them twice for other questions and they were very helpful. I’m not sure what on a Lightning would dictate “extra weight” on the front…BUT, I imagine this would be stiffer ride on up/down travel for stock weight, which you wouldn’t want.

Awesome. Will do! Real world input from folks in the wild using the parts is a huge help tho! Thanks again!

 

[digitaldad]

For a comparable gauge…here is the PDF from the front shocks only. This shows their multiple clip settings.

https://eibach.com/storage/instructions/D4144.pdf

Remember, this is with OEM springs, hence why different on the “kit” with Eibach springs.

 

[sunrise089]

Yeah, I was just coming back to edit…I thought before it showed an additional height number but maybe I was just remembering the rear specs.

Give the Eibach crew a shout to see if they will actually give some numbers over the phone. I called them twice for other questions and they were very helpful. I’m not sure what on a Lightning would dictate “extra weight” on the front…BUT, I imagine this would be stiffer ride on up/down travel for stock weight, which you wouldn’t want.

I don’t think they say “extra weight only” due to ride, but rather to keep the total lift under 3”. As you probably saw, the 2.6” OEM spring and 2.9” Eibach spring lift heights are at opposite ends of the shock mounting options. Ie the Eibach spring adds 2.9” by itself while the shock alone adds 0” at the lowest setting and 2.6” at the highest.

My guess is Eibach only thinks you can get away with stock control arms (I know from our previous discussions this is borderline anyways) at 2.9” or lower and so that’s all they recommend. But if you weigh the truck down now the ride height increase is less than 2.9” and so you can use the higher shock setting to get back towards that ceiling.

 

[sunrise089]

The 2.9” is the maximum height setting for the fronts. @HI Zeus bought the shocks only (left OEM springs in place), which Eibach claims is 2.6”, but he also added a leveling puck.

His truck sits higher than mine but we didn’t measure the exact difference…well we grabbed the measuring tape but on my driveway incline, it wasn’t a very good attempt to get the real numbers.

Bolded for emphasis mine.

I did not catch this previously or did not properly internalize it. I see looking more closely at his thread that he’s ~4” of total lift. Him deciding UCAs are needed certainly makes sense now

Putting all of this together as well as the excellent recommendations from @digitaldad I wonder if a no-rub minimal cost option then is a 34” tire, Eibach shocks only (no springs), and stock control arms. That keeps the lift at 2.6” vs 2.9+” and seems less likely to hit the crash bars too. And if a 34” tire is acceptable then that brings in the option of the new EV Toyo on stock rims. Less ‘Baja’ looking than I had planned but potentially a lot less range hit and a lot less money.

 

[digitaldad]

I don’t think they say “extra weight only” due to ride, but rather to keep the total lift under 3”. As you probably saw, the 2.6” OEM spring and 2.9” Eibach spring lift heights are at opposite ends of the shock mounting options. Ie the Eibach spring adds 2.9” by itself while the shock alone adds 0” at the lowest setting and 2.6” at the highest.

My guess is Eibach only thinks you can get away with stock control arms (I know from our previous discussions this is borderline anyways) at 2.9” or lower and so that’s all they recommend. But if you weigh the truck down now the ride height increase is less than 2.9” and so you can use the higher shock setting to get back towards that ceiling.

I slept since last night , and I think you’re right. I had assumed they just flipped the orientation of the pic & clip/height info.

To date, I also don’t think I’ve seen anyone mention using the other two settings with the Eibach springs.

 

[digitaldad]

@AZT9 if you end up contacting Eibach, please share the info. I assume the notches would be half inch increments higher than the default 2.9.

One notch higher plus the 0.7 in the rear might be a sweet spot since you also have supporting UCAs.

 

[AZT9]

@AZT9 if you end up contacting Eibach, please share the info. I assume the notches would be half inch increments higher than the default 2.9.

One notch higher plus the 0.7 in the rear might be a sweet spot since you also have supporting UCAs.

Okay. Here’s the skinny. Talked to one of the Engineers that developed the kit and he was very helpful. As for the front settings, confirmed that the kits for the extended range and standard range are exactly the same.
Bottom clip for ER 2.9” lift and the coils are pre-settled so that is the final height
Bottom for SR is 3.0” (he stated that the bulk of the weight of the truck is on the rear coils hence the minimal lift difference in the front vs the rear)
He advised that the “extra weight only” settings are only intended for extra weight. Ie heavy aftermarket bumper, winch, plow, ect. He did also state that any more height caused serious binding to the UCA and that any setting above the bottom clip will cause a harsh top out if the shocks.
As for the rear. As you stated the bottom clip (.3”) will pretty much eliminate the camber issue if you’re unloaded. .7” (second clip) will have a slight rake but will level out at around 3-400lbs in the bed.

 

[digitaldad]

Okay. Here’s the skinny. Talked to one of the Engineers that developed the kit and he was very helpful. As for the front settings, confirmed that the kits for the extended range and standard range are exactly the same.
Bottom clip for ER 2.9” lift and the coils are pre-settled so that is the final height
Bottom for SR is 3.0” (he stated that the bulk of the weight of the truck is on the rear coils hence the minimal lift difference in the front vs the rear)
He advised that the “extra weight only” settings are only intended for extra weight. Ie heavy aftermarket bumper, winch, plow, ect. He did also state that any more height caused serious binding to the UCA and that any setting above the bottom clip will cause a harsh top out if the shocks.
As for the rear. As you stated the bottom clip (.3”) will pretty much eliminate the camber issue if you’re unloaded. .7” (second clip) will have a slight rake but will level out at around 3-400lbs in the bed.

Thanks for supplying the details of your interaction, good to know the official scoop.

 

[T i h o r]

Yes. After a lot of dilberation. I settled on the Delta pros. But reason is that they are tabbed for the onboard scale sensors my truck has. Only company I could find that had them

Do you have a part number or link for the Icon UCA? I just placed an order for the Camber Kit, but didn't see the UCA anywhere. TIA!

 

[AZT9]

Do you have a part number or link for the Icon UCA? I just placed an order for the Camber Kit, but didn't see the UCA anywhere. TIA!

https://iconvehicledynamics.com/acc...ubular-upper-control-arms-w--delta-joint-pro/

 

[AZT9]

The UCAs are the same as ICE. Just gotta be within the correct year range

 

[sunrise089]

The UCAs are the same as ICE. Just gotta be within the correct year range

When you called Eibach what did you do to get to talk to one of the engineers? Is it as simple as “may i please speak to an engineer?!”

 

[AZT9]

When you called Eibach what did you do to get to talk to one of the engineers? Is it as simple as “may i please speak to an engineer?!”

The folks on the helpline are pretty knowledgeable but couldn’t answer a couple questions and transferred me

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