PDA

View Full Version : June 2019 Suspension Updates and New Technology



1Marauder
06-17-2019, 02:51 PM
Ok Gang,

I will write up more later but wanted to get this out there!

Disclaimer, I am good with tools, and projects, and cars. Not a mechanic, not an engineer, but I take advice really well, and I have others do the hardest work mostly because I am now partially handicapped--and crunched for time.

Two of my four panthers have "the lean" and two don't. The two that lean ALSO SIT 1.5 to 2 inches taller in front and EACH ONLY HAS 30.000 miles. Drives me fricken Batty!

Wild thing is... Of the two that sit high in front AND lean, one is a Marauder, and the other is a CVSPORT.

I found NOS (rare) Heavy duty front springs with same stock tag codes as Marauder.... Installed them with new Heavy Duty Shocks...AND THE DAMN CAR STILL SAT 2 INChES TOO HIGH. So I uninstalled them and had 1 coil could cut... And it sits almost exactly like the two stock panthers do.

So I then installed new rear KYB struts, and A-2220 Hevy duty airbags (Limo etc).

The new KYB shocks were installed a while back with new rear sway bar, so I just installed the new heavy duty airbags and they are BADASS. Could feel the difference in the driveway. The comparison is as striking and when you first installed New Metco Watts link and control arms....That much of an immediate noticeable difference.

COOLEST THING EVER? The mechanic has a Snap On Ethos Unit, plugged it into my port... And found an air ride control software in the unit.

First he "remembered" the Air ride height before changing the rear bags, and after he changed the bags, he simply pressed the control screen button, could cycle the air ride pump... And it went back to where I had it set previously. He then lifted car, moved the manual settings back to the middle of thier travel range, and tightened the two nuts..

Once on the ground he cycled the air compressor to inflate/deflate the bags three times... to see if we could "level the rear" and...

Get this. Asked me where I wanted the new rear height "set."

By pushing a button on the screen, UP or DOWN, we set the rear setting EXACTLY WHERE I wanted it. All while standing outside the car, on the ground, looking at it.

Having manually done this four times to get it right (in the past) .. Each time raising and lowering the lift etc... This SnapOn control unit method was SIMPLY TOO COOL!

Bad news is... Car still leans a little. It is not the bags, not the shocks, and not the springs. 1 owner car, never wrecked, still near showroom. Mechanic checked everything he could think of.

Car sits 2 inches above rubber both front and back. Looks amazing.


PS photo attached. 6:45PM hazy hot dusty California day. Sun just right, came out of Resturant... And had to take this photo. The tires do NOT stick out or anything... This is completely the angle of the sun. Car looks stock in broad daylight. Looks pretty low and mean here!

NXSBOB
06-18-2019, 09:07 AM
Good write up!!
What model/part number "Snap On Ethos" are you using?

offroadkarter
06-18-2019, 05:23 PM
My friends old 03 marauder had a noticeable lean side to side as well, I want to say somewhere between 1-1.5" side to side. He bought it with 24k miles on it so this wasn't some high mile ghetto cruiser we checked last week, this was going on 10 years ago about.

We checked my DTR which at the time had stock suspension and it was within a half inch side to side. I am pretty sure my 03 is also very close side to side, I never noticed a lean when measuring the suspension before/after the cut coils.

These are just stupid thoughts, but did you think about loosening and re-torquing the front control arm bolts at ride height to make sure the bushings aren't twisted in any way? Especially since you have non original coils in there.

Only other thought is maybe its body mounts.

Either way, chalk it up to the excellent build tolerances of the panther platform and excellent quality control of STAP.

Taemian
06-23-2019, 01:52 PM
I'm looking for this info as well!


Good write up!!
What model/part number "Snap On Ethos" are you using?

1Marauder
07-05-2019, 07:48 PM
Did some research and actually found a TSB on leaning CV/Grand Mar's!

In reading the full TSB, they actually had kits made with seven 1/2 "spacer" bolts for the low side. It was a great read!

Part of the TSB discussed how to "settle" a car for measurement to make sure the car qualifies for the fix.

Not making this up... It has the dealer load trunk until rear height adjusts, unload trunk, and then shake car up down front,up down back, and rock car side to side, right above front/rear door pillars. Then, After the procedure to measure (on flat ground) to lower lip of wheel well.

So I've already shared the above suspension and bag replacement... (Sadly) Not curing my "lean."

A week later I was inDowntown Sac, where the roads have a heavy crown into gutter (we are a 3 river city... Lots of rain/water/flooding), on one way street parked with my passenger side 12-14 inches lower than driver's side (hard to open driver's door). Parked for a hour, came out and remembered the TSB. Just for fun, I rocked car side to side as described in the TSB, using the crowned road to gain more leverage/movement.

People were walking by, casting odd looks myway,so I stopped. Then I thought, heck with them, the conditions are perfect, so I went back at it like I was trying to rock and tip the car over (harder since all new suspension parts front and back). And I seriously rocked the car for a few minutes.

Got in, drove home, made some tight hard turns, hit freeway for 5 miles, and NO JOKE. MY CAR LEAN IS NOW NON EXISTENT. It has been three weeks now -- and I am sure I will get flamed...but I am going to do this every time I notice the lean.

Some one please try it! I understand that this shouldn't work... BUT under that same premiss our cars shouldn't lean in the first place!

Post up if it helps!

gdmjoe
07-05-2019, 10:49 PM
1Marauder - Did some research and actually found a TSB on leaning CV/Grand Mar's! ...
Care to share the TSB # ?
.

1Marauder
07-06-2019, 05:33 AM
TSB 97-18-2

I found a long version, and a shorter version.

1Marauder
07-06-2019, 05:34 AM
PS Thought about asking for TSB-97-18-2 to be posted up as a sticky.

gdmjoe
07-08-2019, 02:41 PM
For completeness ..... *NOTE: Posted previously, however, somehow (?) got chitcanned http://www.gdmjoe.com/dunno.gif




TSB 93-11-1 - SUSPENSION—VEHICLE LEAN LEFT— ... (http://www.idmsvcs.com/2vmod/rearsprings/tsb9311.pdf)

TSB 97-18-2 - SUSPENSION—VEHICLE LEAN RIGHT— ... (http://www.idmsvcs.com/2vmod/rearsprings/tsb97182.pdf)

TSB 91-22-2 - SUSPENSION—VEHICLE LEAN LEFT— ... (http://www.idmsvcs.com/2vmod/rearsprings/tsb91222.pdf)


.

1Marauder
07-09-2019, 04:48 PM
Moderators please delete this thread. Better thread started--this is/was a duplicate