Question about CPP C5 uprights for 1970-81 F-body

[Rod P]

like watching a hockey game

[Vince@Meanstreets]

Originally Posted by Rod P

like watching a hockey game

heavy on the checking....dude are you wearing pants?

[Blake Foster]

NICE
And we know for SURE it wasn't the wheel that was flexing right? because that to my knowledge is the ONLY time we have seen this happen. My Nova had no more than 1/4 to 3/8 clearance with no issues, So I just want to cover all the bases.
I know I have seen wheels like this (maybe not this brand as I don't know which it is ) Break the center out of them on the auto cross/ road race so I would assume there would be some FLEXING in the wheel??

I am not going to get into it.

[Ernie W]

Hmm, I didn't think I would get this much response on the topic. I don't autocross or road race, I do plan on going to the drag strip some. Would I be better off with the CPP spindle or modify my stock ones and go with the Kore 3 setup? My main concern was possible failure of the cpp spindle as some say its a cheap cast. Right now I'm leaning towards the Kore 3 route.

Thanks for the input guys, good to see some well known names chiming in on this.

[fishface]

See what a can of crap you opened Ernie, ya big trouble maker?? Lol. Just kidding, funny how a simple question can turn into a pissing contest.

[WSSix]

Ernie, you're building a street car like I am. I have Kore3's front C5/6 brake kit on stock spindles with their billet hubs and 1/2 studs. I have no doubt this setup will be plenty for my needs. I have no doubt it will be plenty for your needs as well. Keep it simple.

[Vince@Meanstreets]

Originally Posted by WSSix

Ernie, you're building a street car like I am. I have Kore3's front C5/6 brake kit on stock spindles with their billet hubs and 1/2 studs. I have no doubt this setup will be plenty for my needs. I have no doubt it will be plenty for your needs as well. Keep it simple.

Agreed, we beat the hell out of many stock spindles with zero issues or failures. Can't say the same for the CPP stuff.

In my opinion a simple Kore 3 caliper bracket is cheaper than the C5 hub you will need.

David has some great advice on the ball joints but for a street car might not be necassary.

[David Pozzi]

We didn't have enough testing time with the GMR hubs to tell if they were good or bad, I think she ran two events, DelMar, & a track day. The machine work was outstanding but they gained play slightly, so we tightened them - slightly, then they loosened again so we adjusted again - slightly. Adjustments were done to Jason's specs, - zero preload, not .001" play as other bearings. We still had brake knock back issues & already had installed the Baer floater on the rear.

Mary then decided to change to an Art Morrison subframe, so we ended testing. We didn't have knock back with the Art Morrison sub, - using ZR1 hubs.

I'm no engineer, but I don't like seeing taper roller bearings that are that small & that close together, - as they have to be to fit inside the space of a Corvette hub. They must be pretty heavily loaded.

The one lap Camaro front wheel issue was due to wheel flex in my opinion (HRE). That car has always had minimal knock back, - even with ball bearing rear axles. OLC was using std Corvette bearing units at that time, later went to the ZR1 type but we saw no difference. At that time, OLC was having huge understeer issues (no rear bar) which put a lot more load on the front wheels.

[redfire69]

I've not seen any published issues with CPP spindle failures that are mentioned in this thread. Anyone else? Aren't there alot of cast spindles in our market already?

[Blake Foster]

The one lap Camaro front wheel issue was due to wheel flex in my opinion (HRE). That car has always had minimal knock back, - even with ball bearing rear axles. OLC was using std Corvette bearing units at that time, later went to the ZR1 type but we saw no difference. At that time, OLC was having huge understeer issues (no rear bar) which put a lot more load on the front wheels.

Thank YOU