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UMI Performance Suspension Over Haul - 1999 SS - Lots of pics!

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Old 02-29-2016, 01:59 PM
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Wheels and tires are in from Strano Parts. Forgestar F14's 18x11 with Rival S 315's.



Old 02-29-2016, 04:50 PM
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That thing is going to look (and handle!!) INSANE with those on there!
Old 02-29-2016, 06:39 PM
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Are you doing anything to the front bearings to keep from chewing them up with 315's on the front?
Old 02-29-2016, 07:08 PM
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Originally Posted by ssjason232
Are you doing anything to the front bearings to keep from chewing them up with 315's on the front?
This.

I'm planning to run that exact same tire/wheel combo and don't want to eat through my front hubs...
Old 02-29-2016, 07:10 PM
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Have 2 spare autozone hubs and keep recipes for lifetime warranty, or shell out for the real nice rebuildable units. Not really any other options lol.
Old 02-29-2016, 09:09 PM
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Originally Posted by smitty2919
Have 2 spare autozone hubs and keep recipes for lifetime warranty, or shell out for the real nice rebuildable units. Not really any other options lol.
One other option. SKF X Trackers.

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Old 03-01-2016, 07:36 AM
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Originally Posted by RAMPANT
One other option. SKF X Trackers.



What was the company making the rebuildable ones? I thought the ones you posted ARE the expensive option.


I love this build.
Old 03-01-2016, 07:49 AM
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Right now we run Moog and have had good luck with them for a few events. We are working with Hoosier as well on using their new hubs.

We are also having our power steering rack rebuilt and a new Turn One pump coming soon.

Also need to work on the transmission and the rear end this year to make it bullet proof.
Old 03-01-2016, 12:07 PM
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Originally Posted by UMI Performance
Right now we run Moog and have had good luck with them for a few events. We are working with Hoosier as well on using their new hubs.
I've heard Moog has a little better luck than Timken and SKF for some reason. Hoosier has some amazing custom stuff, I raced against these guys and they made my setup look like dirt. Incredibly nice people as well, their shop isn't 10 minutes from where I go to school and I could walk right in and ask questions. I'd definitely look into the custom products they make, a little pricey IMO, but ya gotta pay to play
Old 03-01-2016, 12:26 PM
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Originally Posted by RAMPANT
One other option. SKF X Trackers.



Been using this setup for 2 years now. I have one of the earlier sets. It's awesome, hubs last forever. Proven on any track driven corvette. We also used the x-trackers on the old Grand Am/PWC corvettes with zero issues. I was previously chewing through 3-4 sets a summer. Cheaper than the Hoosier hubs.
Old 03-01-2016, 12:35 PM
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But the SKF race hubs aren't an f-body fitment, they are a Corvette which is 3 bolts vs. the F-body square flange.

I carry and use the SKF race stuff on my Z06, but it's not a fit for the F-cars. Which is why we also carry the Hoosier Performance Engineering hub set too.
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Old 03-01-2016, 01:22 PM
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Originally Posted by Sam Strano
But the SKF race hubs aren't an f-body fitment, they are a Corvette which is 3 bolts vs. the F-body square flange.

I carry and use the SKF race stuff on my Z06, but it's not a fit for the F-cars. Which is why we also carry the Hoosier Performance Engineering hub set too.
Ahhh, THAT'S the expensive version I was talking about. They took the SKF hubs for corvettes and modified them for Fbody guys. And then there is the Autozone specials that you can stock up on.
Old 03-01-2016, 02:53 PM
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No, they didn't. The HPE ones are a spindle that uses actual wheel bearings and a custom hub (and it retains ABS too). They aren't cheap, but you can see why when you look at them.

http://www.stranoparts.com/partdetai...=219&ModelID=7


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Old 03-01-2016, 03:33 PM
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Originally Posted by UMI Performance
Wheels and tires are in from Strano Parts. Forgestar F14's 18x11 with Rival S 315's.
If you get the chance could you weigh that wheel before installing it? Would like to see if I would be shaving off any unsprung weight by going with F14's in that size even though I'll be going from 17's to 18's.
Old 03-01-2016, 03:35 PM
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Yeah, not sure which of the OE style replacements Boss002 was using, but his hub completely separated at an event, sending the wheel, caliper and part of the hub off into the paddock.

Are these ESP legal now or is it just a "Run it until somebody bitches about it" move? I vaguely remember seeing a post on FRRAX about trying to get a letter drafted up to protest it an allow us to use aftermarket hubs without a penalty since they aren't lighter or change the geometry of the suspension and it's a safety issue.








Last edited by WarShrike; 03-01-2016 at 03:43 PM.
Old 03-01-2016, 04:52 PM
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Originally Posted by M4N14C
If you get the chance could you weigh that wheel before installing it? Would like to see if I would be shaving off any unsprung weight by going with F14's in that size even though I'll be going from 17's to 18's.

What do you current wheels weigh? Those are right about 22 pounds in that size.
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Old 03-01-2016, 06:32 PM
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Originally Posted by smitty2919
Ahhh, THAT'S the expensive version I was talking about. They took the SKF hubs for corvettes and modified them for Fbody guys. And then there is the Autozone specials that you can stock up on.

Isn't there someone (forgot his name/username) on frrax.com machining up conversion adapters so that we can use the above SKF Vette 'race' hubs on our cars' spindles??
Old 03-01-2016, 06:34 PM
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No idea, I don't go over there anymore. But the SKF stuff plus adapters while cheaper to start are also not serviceable so the next time you end up at like costs, and the 3rd time you are just spending more.
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Old 03-01-2016, 06:36 PM
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Originally Posted by WarShrike







OUCH!!!

I've heard about this incident, but have never actually seen the pics of it.
Old 03-01-2016, 07:26 PM
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Originally Posted by dailydriver
Isn't there someone (forgot his name/username) on frrax.com machining up conversion adapters so that we can use the above SKF Vette 'race' hubs on our cars' spindles??
Yeah, a funny title so it's not the easiest to find, this is some info about it, not sure who actually makes the adapters though: So I bought a shirt........

Looks like the hub's are 350 each and both adapters are 450, if you are able to get the guy to make another batch that is. So total cost is 1150 for the C5 hubs with adapter brackets. Or 1400 for the Hoosier PE 4th gen hubs.


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