Rear Suspension Squirmy?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

FnD · 07-19-2015, 03:58 PM

Last week I finished installing upgrades to my suspension. I added rear trailing arms and tie rods (shown in the list below) However, now the car's rear end is tracking funny (squirmy) on slightly uneven pavement. It feels like the car's rear end moves / falls into the low spots or ruts in the road . It is not a lot of movement but is unsettling. The rear end also seems to move when it is on heat softened Crack sealer. It seems to track well on smooth pavement and well under acceleration. The car tracks straight and steering wheel is true. I put the alignment bolts with the offset washers on the tie rods in the same position as the factory parts.

Before installing the rear toe links and trailing arms I did not feel any of the things above so it must have something to do with the replacement tie rods and trailing arms. Right?

The questions I have are; is this slight wiggle normal with the suspension parts I have added? Is the car's rear end alignment out of whack? If the slight movement is normal, is there something that can be done to eliminate it ? Because it makes the car's and my rear end nervous.

Thanks FnD

Suspension changes: (All pfadt) solid rear sub frame/ cradle bushings, front and rear sways, and rear trailing arms and tie rods not adjustable (just installed).

Ventmaster · 07-19-2015, 04:06 PM

No matter how carefully you reassemble, a re-alignment is needed after those upgrades.

FnD · 07-20-2015, 06:36 PM

Thanks Ventmaster. So the squirmy feel is from a misalignment of the rears. Thanks again. I will get a 4 wheel alignment to confirm everything is in spec.

hammdo · 07-20-2015, 06:59 PM

Quote:

Originally Posted by Ventmaster

No matter how carefully you reassemble, a re-alignment is needed after those upgrades.

+1. I've done a lot and had to realign each time...full 4 wheel alignment..

-Don

PEW-PROFESSIONAL · 07-20-2015, 07:28 PM

Rule of thumb, mess with any suspension components requires alignment!

kyle@ridetech.com · 07-21-2015, 01:55 PM

Quote:

Originally Posted by PEW-PROFESSIONAL

Rule of thumb, mess with any suspension components requires alignment!

This!

FnD · 07-21-2015, 03:15 PM

Thanks guys. I'll get a 4 wheel alignment.

Destructo09 · 07-21-2015, 03:24 PM

Yep, i've marked bolts and everything to get them close, but the only thing i've ever gotten spot on was front camber and it was pure luck.

Even with marking bolts and stuff it's always out of whack to some extent when I go get it put on the alignment rack.

rockrau · 07-21-2015, 07:04 PM

Make sure you time the bushings!

07-19-2015, 03:58 PM	#1
FnD Drives: 2013-SS1-M6-CRT Join Date: Nov 2013 Location: Upstate NY Posts: 22	Rear Suspension Squirmy?? Last week I finished installing upgrades to my suspension. I added rear trailing arms and tie rods (shown in the list below) However, now the car's rear end is tracking funny (squirmy) on slightly uneven pavement. It feels like the car's rear end moves / falls into the low spots or ruts in the road . It is not a lot of movement but is unsettling. The rear end also seems to move when it is on heat softened Crack sealer. It seems to track well on smooth pavement and well under acceleration. The car tracks straight and steering wheel is true. I put the alignment bolts with the offset washers on the tie rods in the same position as the factory parts. Before installing the rear toe links and trailing arms I did not feel any of the things above so it must have something to do with the replacement tie rods and trailing arms. Right? The questions I have are; is this slight wiggle normal with the suspension parts I have added? Is the car's rear end alignment out of whack? If the slight movement is normal, is there something that can be done to eliminate it ? Because it makes the car's and my rear end nervous. Thanks FnD Suspension changes: (All pfadt) solid rear sub frame/ cradle bushings, front and rear sways, and rear trailing arms and tie rods not adjustable (just installed).

07-20-2015, 07:28 PM	#5
PEW-PROFESSIONAL Drives: 2014 Chevy Camaro 2SS Join Date: Sep 2014 Location: Atlanta, Georgia Posts: 324 View My Garage	Rule of thumb, mess with any suspension components requires alignment! __________________ G5carbon.com-SS Carbon fiber Trunk Filler PanelsCarbon fiber Heat Extractor Z/28 Carbon Fiber Spoiler (Comming Soon)Z/28 Carbon Fiber Rear Defuser (Comming Soon)SS Carbon Fiber Lower Grill (Coming Soon)Z/28 Carbon fiber Side Skirts (Coming soon)SS Carbon fiber Cooling Plate (Coming Soon)**Camber/Caster Plates (Coming Soon) Westcoastcamaros.com-Carbon Fiber Engine Cover (Ordered)

07-21-2015, 03:24 PM	#8
Destructo09 Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013 Location: Raleigh-Durham Posts: 1,409	Yep, i've marked bolts and everything to get them close, but the only thing i've ever gotten spot on was front camber and it was pure luck. Even with marking bolts and stuff it's always out of whack to some extent when I go get it put on the alignment rack. __________________ 2010 2SS BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP)

07-21-2015, 07:04 PM	#9
rockrau Drives: 2010 2ss red LS3 Join Date: Aug 2011 Location: perkasie pa Posts: 533	Make sure you time the bushings! __________________ Pedders Pace Car Kit with ZL1 sway bar conversion & camber bolt kit.Lowered 1.5". 1LE tires & wheels. CAI air intake. Anvil CF rear spoiler.MGW shifter. 1 7/8" Kooks LT headers & HF cats.V-Max ported TB. Tuned.

07-19-2015, 04:06 PM	#2
Ventmaster Drives: 2017 1SS 6spd Join Date: Jan 2011 Location: Utah Posts: 2,869	No matter how carefully you reassemble, a re-alignment is needed after those upgrades.

07-20-2015, 06:36 PM	#3
FnD Drives: 2013-SS1-M6-CRT Join Date: Nov 2013 Location: Upstate NY Posts: 22	Thanks Ventmaster. So the squirmy feel is from a misalignment of the rears. Thanks again. I will get a 4 wheel alignment to confirm everything is in spec.

07-21-2015, 03:15 PM	#7
FnD Drives: 2013-SS1-M6-CRT Join Date: Nov 2013 Location: Upstate NY Posts: 22	Thanks guys. I'll get a 4 wheel alignment.