Rear Upper Control Arm Bushings - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SS 310H55A · 02-01-2019, 02:10 PM

I'm planning on doing the Pegasus rear cradle bushings soon and thought it would be convenient to do the upper control arm bushings while I'm in there.

I see that JDP sells them for $130 for poly bushings and BMR has delrin bushings for $160, which isn't that much more. Do the poly or delrin bushings for the rear upper control arms add anything in the way of NVH? Will I need to do an alignment afterwards?

shibbs · 02-01-2019, 02:16 PM

I did poly in my entire rear suspension and cradle.
My old Pirelli tires with stock suspension were louder than new Michelins with the full poly. Not a noticeable difference, imo.

VR Baron · 02-01-2019, 03:37 PM

I have whiteline poly, same as bmr. And the jdp wheelhop kit with bmr tie links, trail arms and cradle bushings. No noise and no affect on ride

gtstorey · 02-01-2019, 04:08 PM

I updated to Z28 based upon JPSS recommendation

cdb95z28 · 02-01-2019, 05:05 PM

Get the Z/28 ones

SS 310H55A · 02-01-2019, 05:19 PM

Quote:

Originally Posted by cdb95z28

Get the Z/28 ones

Only reason I was thinking of the JDP or BMR bushings is because I didn't want to hassle with pressing the stock bushings out of the bracket. I'm assuming the z/28 bushings come without the bracket. Why get the z/28 ones, will they ride more comfortably than the delrin or poly bushings?

cdb95z28 · 02-01-2019, 06:53 PM

The Z/28 bushings will bolt right up. They are in the bracket. OEM quality.
The Z bushing is still rubber but it does not have the voids like the other OEM bushings, but the NHV will be best of the three.
Poly will deform and take a set. I try to avoid poly at all costs. Delrin is better, but harder.
What are you doing with the car? street only? Drag racing? Road racing or autoX?
As for an alignment, the cradle will locate pretty good onto the body structure, but why not get it checked for peace of mind.

cdb95z28 · 02-01-2019, 07:11 PM

Here's the Z bushing on the left
Part #s 23104907 and 23104906

Name: z28 uca bush side.jpg
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SS 310H55A · 02-01-2019, 07:22 PM

Quote:

Originally Posted by cdb95z28

The Z/28 bushings will bolt right up. They are in the bracket. OEM quality.
The Z bushing is still rubber but it does not have the voids like the other OEM bushings, but the NHV will be best of the three.
Poly will deform and take a set. I try to avoid poly at all costs. Delrin is better, but harder.
What are you doing with the car? street only? Drag racing? Road racing or autoX?
As for an alignment, the cradle will locate pretty good onto the body structure, but why not get it checked for peace of mind.

Quote:

Originally Posted by cdb95z28

Here's the Z bushing on the left
Part #s 23104907 and 23104906

Thank you for posting the part numbers. The z/28 bushings were the ones I originally wanted but didn't realize they came in the brackets, so that changes things. I didn't like poly bushings much in prior cars I've owned and don't have any experience with Delrin to know if I'd be making a mistake going that route.

The car is supposed to be my daily driver but I have an Avalanche I've been daily driving (when it doesn't take a crap on me and leave me stranded). The Camaro is mainly for street, auto-x and hoping to find the time to get into road racing. I think for the level I'll be driving the Camaro at, the z/28 bushings will be more than adequate.

olblue75 · 02-01-2019, 08:30 PM

I have the Z bushing and the rear seems to react better! No more lag in acceleration or wallowing sensation.

Avalnch · 02-02-2019, 01:15 AM

I used the Z28 bushings too when I installed my Pegasus cradle ones.

bayarea408 · 02-02-2019, 01:54 AM

im literally right in the middle of finishing my pegasus mounts and opted like many of you to go with the Z28 upper control arm mounts.

Prior to this....when the boost hits it was really something...lets see if she calms down

02-01-2019, 02:10 PM	#1
SS 310H55A Drives: 2014 Camaro SS Join Date: Jan 2019 Location: Southern California Posts: 253	Rear Upper Control Arm Bushings I'm planning on doing the Pegasus rear cradle bushings soon and thought it would be convenient to do the upper control arm bushings while I'm in there. I see that JDP sells them for $130 for poly bushings and BMR has delrin bushings for $160, which isn't that much more. Do the poly or delrin bushings for the rear upper control arms add anything in the way of NVH? Will I need to do an alignment afterwards? __________________ 2014 SS \| MGW Flat Stick shifter \| Raceseng Slammer shift knob \| Z/28 spoiler and grill

02-01-2019, 05:05 PM	#5
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,252	Get the Z/28 ones __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD

02-01-2019, 06:53 PM	#7
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,252	The Z/28 bushings will bolt right up. They are in the bracket. OEM quality. The Z bushing is still rubber but it does not have the voids like the other OEM bushings, but the NHV will be best of the three. Poly will deform and take a set. I try to avoid poly at all costs. Delrin is better, but harder. What are you doing with the car? street only? Drag racing? Road racing or autoX? As for an alignment, the cradle will locate pretty good onto the body structure, but why not get it checked for peace of mind. __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD

02-01-2019, 07:11 PM	#8
cdb95z28 Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008 Location: Johnstown, PA Posts: 3,252	Here's the Z bushing on the left Part #s 23104907 and 23104906 __________________ 2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD

02-01-2019, 08:30 PM	#10
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,070	I have the Z bushing and the rear seems to react better! No more lag in acceleration or wallowing sensation. __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

02-01-2019, 03:37 PM	#3
VR Baron SoCal Camaro5 Race Team Drives: 2021 Shadow Grey Camaro 2SS 1LE Join Date: Mar 2010 Location: SO CAL Posts: 14,298	I have whiteline poly, same as bmr. And the jdp wheelhop kit with bmr tie links, trail arms and cradle bushings. No noise and no affect on ride

02-01-2019, 04:08 PM	#4
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,185	I updated to Z28 based upon JPSS recommendation

02-02-2019, 01:15 AM	#11
Avalnch Drives: Rally Yellow Camaro+Avalanche Join Date: Dec 2009 Location: Vancouver Posts: 1,110	I used the Z28 bushings too when I installed my Pegasus cradle ones. __________________ Vengeance Kaotik Cam, C.A.I., ARH LT, Pypes Cat Back, ZL1 Shifter+2012LS3VERT bushing, Quantum Brake Ducts, JDP Tow Hook Scorch Yellow Trim Kit, Shark Fin, AAC DRLs+ABLs+SMDs, ZTA Rear Spoiler, R.Y. 1LE Splitter. Pfadt coilovers, camber plates, trailing arms, Pegasus Solid Subframe. Pedders ZL1 barz, radius arm & steering rack bushings. BMR adjustable toe-rods. Hotchkis Max Chassis Brace. ZL1 GMPP Driveline Upgrade. TurnOne P/S pump. CTS-V 6 pistons. 447 HP @ 6180 RPM / 418 TQ @ 5100 RPM

02-02-2019, 01:54 AM	#12
bayarea408 Drives: T Join Date: Mar 2015 Location: CA Posts: 803	im literally right in the middle of finishing my pegasus mounts and opted like many of you to go with the Z28 upper control arm mounts. Prior to this....when the boost hits it was really something...lets see if she calms down