Pedders EP 6579 Radius rod inserts installed

[camaro500]

These are my first impressions from the Pedders radius rod inserts...
Firstly, only when you drop the radius rod from the frame do you realize how big and soft this stock bushing is.
There are two big voids on each side of the steel ferule that will be filled by this bushing insert.
You are also increasing the surface area that contacts the frame BIG TIME.
I like inserts because the install is super easy.

I have the CTS-V front brake upgrade and I can tell you that the steering wheel is now more steady under hard braking.
In general, the steering wheel input is more direct and responsive.
I can tell you that this is an excellent way to help steady the front end of this car.
The only down side are the terrible roads here in Montreal and every thing I do to tighten up the feel of the Camaro makes it more difficult to enjoy on these streets.

I would recommend this upgrade to anybody who can get their hands on a set.

[woodside783]

Great write up and agree 100%

[L99CAMA2011]

Originally Posted by camaro500

These are my first impressions from the Pedders radius rod inserts...
Firstly, only when you drop the radius rod from the frame do you realize how big and soft this stock bushing is.
There are two big voids on each side of the steel ferule that will be filled by this bushing insert.
You are also increasing the surface area that contacts the frame BIG TIME.
I like inserts because the install is super easy.

I have the CTS-V front brake upgrade and I can tell you that the steering wheel is now more steady under hard braking.
In general, the steering wheel input is more direct and responsive.
I can tell you that this is an excellent way to help steady the front end of this car.
The only down side are the terrible roads here in Montreal and every thing I do to tighten up the feel of the Camaro makes it more difficult to enjoy on these streets.

I would recommend this upgrade to anybody who can get their hands on a set.

I have the Pfadt solid spherical rod bushings and just bought GMs version of your upgrade which I will post in a few hours when I pick them up from the dealership. Let's just say GMs most track capable Gen 5 wears them.

[VR Baron]

I put these in a year ago. The do help some with steering input, mostly noticed at freeways speeds

[camaro500]

VR Baron, I agree that it is most noticeable on freeway or high speed cornering. It is surprising how good these cars can be once you throw some money at the suspension and light weight wheels.

[blazzin1]

Originally Posted by L99CAMA2011

I have the Pfadt solid spherical rod bushings and just bought GMs version of your upgrade which I will post in a few hours when I pick them up from the dealership. Let's just say GMs most track capable Gen 5 wears them.

Did you not like the Pfadt Spherical Bushings??? I've had them sitting in a box for about a year now, and still haven't gotten around to installing them.

[VR Baron]

Originally Posted by camaro500

VR Baron, I agree that it is most noticeable on freeway or high speed cornering. It is surprising how good these cars can be once you throw some money at the suspension and light weight wheels.

Yep, and I have thrown alot at it.. lol

[L99CAMA2011]

Pictures of my Z28 front arms. The white insert is as stiff as Delrin material. Can't even squeeze it.

[h018871]

L99CAMA2011

are the factory pieces only inserts or did you purchase the complete arms?
What are the GM numbers you ordered?

[camaro500]

These are very nice ! It is nice to see a company like GM finally listen, learn and work with their customers and after market companies to build better performance cars. My hat off to chevrolet!

[L99CAMA2011]

Originally Posted by h018871

L99CAMA2011

are the factory pieces only inserts or did you purchase the complete arms?
What are the GM numbers you ordered?

23105018 / 23105019. The arms have the same old parts number but because of this being a Z28 application the parts #s are what I listed. My take is their are stock arms with inserts but who knows, GM probably made the inside a bit stiffer as well. I am going to install them in an hour. My guess and hope is that even on track I won't need the Pfadt bush installed pieces anymore. I honestly prefer to use GM stock upgrades and feel safer with them even with power mods. Instead of a Cam I am thinking of buying their 525hp engine kit for just under $10,000 when I feel the need to replace my current engine instead of going after market cam. I am hearing about too much cam failures lately as well as seeing them in real life. 525hp from that kit with headers should be maybe 550hp crank. I'll be happy. C7 Vette in the future after this car. Don't forget , when installing these time your bushings or you'll ruin a good thing.

[camaro500]

Guys, timing your bushings is very easy. I made myself ramps that bring the car up 1 foot and that is plenty of room to torque down those bushings at ride height. Just drive the car up and down the ramp a couple of times once you take it off the jack stands to be sure the suspension has settled at ride height.
L99CAMA, enjoy your new arms! Crate engine not necessary with a good installer and good parts! Spend 4 grand instead of 8 for a crate motor

[h018871]

Thx L99
I'll go chat with the dealer next week about these

[L99CAMA2011]

Originally Posted by camaro500

Guys, timing your bushings is very easy. I made myself ramps that bring the car up 1 foot and that is plenty of room to torque down those bushings at ride height. Just drive the car up and down the ramp a couple of times once you take it off the jack stands to be sure the suspension has settled at ride height.
L99CAMA, enjoy your new arms! Crate engine not necessary with a good installer and good parts! Spend 4 grand instead of 8 for a crate motor

Yeah. Tighten the bolts once under the car and the bushings has settled into their neutral position. The car honestly feels like a new car and corners more neutral than with the Pfadt bushings. I admit there are some corners where the bushings aren't as supportive as the Pfadts since the Pfadts are solid but they are stiffer than any other bushing I tried. Great job GM car also feels very smooth on corners and really feels good driving through the parking lot at Wendys for a meal. OH and you should've seen the cute ladies I saw there, oh boy.