Ram TRX lean Star Bulletin Update

timinnd · Oct 16, 2021

thetasigma1186 said:
I plan to take mine in for the rear thud as well. Do you think the sway bar needs removed before taking in? Thanks!

Why are you wondering? Potential warranty issues?

thetasigma1186 · Oct 16, 2021

timinnd said:
Why are you wondering? Potential warranty issues?

Butter mentioned he was removing his and taking it in…that made me think about it. So I figured I’d get some options. I can’t imagine it voids warranty, but I have no clue!

SpamSpamSpam · Oct 16, 2021

thetasigma1186 said:
Butter mentioned he was removing his and taking it in…that made me think about it. So I figured I’d get some options. I can’t imagine it voids warranty, but I have no clue!

I would suggest removing it. Adding the sway bar tends to reduce or completely eliminate the lean which may lead to a dealer saying there is no issue.

ceb · Oct 16, 2021

Then you put the sway bar back on and lean it the other way? I just don’t see putting stiffer springs on one side of the truck as the better option here.

magiaone · Oct 16, 2021

Wonder if they fixed it for 22

Bubba · Oct 20, 2021

I haven’t really noticed a lean much but figured I’d measure. Half inch short on the drivers side. I don’t notice it now but I’m worried if it’s a spring problem it’ll get worse as time goes on?

PotterTRX · Oct 27, 2021

magiaone said:
Wonder if they fixed it for 22

My buddy just got his new 22 and it does not have the new part number springs and has the normal TRX lean.

Frankenswat · Oct 27, 2021

PotterTRX said:
My buddy just got his new 22 and it does not have the new part number springs and has the normal TRX lean.

Perfect

RTG · Oct 28, 2021

Frankenswat said:
Glad to see admittance of a problem and not more “ well hey 702 HP so yeah it’s normal” bullshit. I really hope I get lucky and get a truck that doesn’t come pre loaded with 3 bonus required shop trips.

I think it’s inconsistent heat treat on the early springs. Seems to be an early TRX issue. My wifes TRX came six months after mine. It sits a bit taller, prouder and is perfecly level. My early TRX was 0.5” lower on the driver side. Dealer already has the new springs on order and they will be replaced with my next oil change.

RTG · Oct 28, 2021

Bubba said:
I haven’t really noticed a lean much but figured I’d measure. Half inch short on the drivers side. I don’t notice it now but I’m worried if it’s a spring problem it’ll get worse as time goes on?

Mine never changed or got worse. Have over 10,000 miles so far. I would still get it checked by your dealer. I emailed the star bulletin to my sales guy, he got me in touch with the correct person at service. It only took a couple minutes to come out and measure.

PotterTRX · Nov 4, 2021

I am tempted to make a video explaining the issue and the inspection and repair process on the dealership side of things

Johnkn · Nov 4, 2021

^^ great idea, please do.... really enjoying your vids.....

.

A-10WINGMAN · Nov 20, 2021

magiaone said:
Wonder if they fixed it for 22

Doesn't look like it.

But parts were ordered!
My 21 Ram 1500 Limited did the same, I didn't keep it long enough to get it fixed lol.

Elarson6772 · Nov 20, 2021

Just an update. My truck had the two new springs installed on the drivers side front and rear last week. The two front corners are now within 1/4” with the low side being the drivers with a full tank of gas. The two rear corners are with 1/8”. I didn’t remove the sway bar and it was a non issue. In fact, once the new springs were in they adjusted the end links a bit to get the sway bar perfect.

Westphalracing · Nov 21, 2021

Shedding some light as to “why”.

In Motorsports we change springs OFTEN. Sometimes 2-3 times a day, and Usually +/- 50lb in spring rate to chase an ideal balance from the car. When we use new springs (doesn’t matter from who, swift, eibach, H&R, hyperco, etc) the new coils settle in the beginning of their life. New springs are heat treated, and when they move for the first “little while” they don’t recoil exactly the same. We set the car up higher than target, and it lowers over time with each heat cycle/use.

To be specific, we have a 50mm ride height limit in the rules in IMSA GT3, and we do pre session AND post session (20-60 mins of use on track) alignments and ride heights on the scale pad to eliminate variables. The car’s ride height (and alignment) are set to the target 1/2 of 1mm tolerance since the cars are so sensitive (using a laser scale pad.). The crew guys usually chase a new spring changing the height of the car for 1-3 days of on track use before it stops being a variable.

Finally, Remember where the fuel tank is in the frame of our truck (drivers side). 33 gallons is a significant amount of weight. Take that weight in and out of any car, and look at the suspension. 6lb per gallon, x 33 = 198lbs of fuel (not including the tank weight itself).

The heavy side of any vehicle will lean, That’s physics. And IF there is a slight issue in the heat treating of the springs, coupled with long travel suspension, this will magnify the lean issue. It’s most likely the “variance” you all are seeing. This is actually more common than you might think.

I have all of my street cars corner balanced (with driver weight in the car) and aligned privately, NOT one of mine, or anything that rolls through the shop has the “same” weight and or height at each corner of the vehicle. Even amongst multiple of the same make and model of cars, there is a decent variation in ride height and corner weight in stock springs. You can only nail it once you have independent spring perch adjustments.

I would say try to look past it, as you can obsess over this detail and drive yourself mad chasing it!

Ps. And for those that are curious, you absolutely can feel 1/2 of a mm difference in alignment or ride height on the road. You just need to know what to look for……

Joshua · Nov 21, 2021

LUV2WIN said:
I'm lucky mine is only 1/4" difference side to side in the front

Your truck is beautiful. I wasn't sure if the blue would be too in your face so I chose black but it looks way better than I thought it would and I may trade for blue myself.