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Old 12-04-2016, 03:12 PM   #1
Sy#1991
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2000+ spindle/knuckle

Does anyone know what the oem or aftermarket part number is for the newer style knuckles? Or maybe someone has a pair for sale? Thanks
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Old 12-04-2016, 05:46 PM   #2
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Re: 2000+ spindle/knuckle

What are you using a newer version for?
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Old 12-04-2016, 08:02 PM   #3
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Re: 2000+ spindle/knuckle

Upgraded brakes I bet. Some of the second gen calipers were dual piston.
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Old 12-04-2016, 10:49 PM   #4
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Re: 2000+ spindle/knuckle

AFAIK the 98-2004 4X4 spindle is the same for the larger front brakes. Not all S/T series in these years have the larger brakes. I don't have the part number, my fiche only goes to 94.

And while the 2nd gen calipers are dual piston, the area of the combined pistons is LESS than the single piston 1st gen caliper. This alone will DEcrease braking effort with the same pedal pressure. What increases the 2nd gen brakes effectiveness is a slightly larger rotor diameter (12.75 vs 12.0) and about a 30% larger pad swept area. The"dual pistons" by themselves have nothing to do with the "better" part of the upgrade.

I recall a thread on here where a peep installed Wilwood dual piston calipers on the stock rotors and spindles. Wildwood has two different size piston calipers. The larger diameter duals have the same area as the stock caliper, and will leave the front /rear bias about the same, with everything else being left alone. The smaller diameter pistons will DEcrease the front brake effectiveness. These are intended for use with master cyl upgrades used with 4 wheel disc brake upgrades. The peep installed the smaller diameter wildwoods, and his brakes weren't as "good" as they had been stock. Which made sense to me. It's the AREA of the combined pistons that needs to be considered. The number of pistons means nothing. The area sure does.


Here's a thread
with some info on the 2nd gen brakes.
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Old 12-05-2016, 05:51 AM   #5
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Re: 2000+ spindle/knuckle

I couldn't find the thread about the knuckles but it was for upgrading to the newer style hub bearings. For brakes I'm going with the ctsv 4 pistons and c6 z06 rotors. Master will be change as I'm going to run hydro boost system.
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Old 12-05-2016, 07:11 AM   #6
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Re: 2000+ spindle/knuckle

Post your project please. I am getting ready to do a upgrade to me front. I already have the H boost
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Old 12-05-2016, 07:48 AM   #7
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Re: 2000+ spindle/knuckle

Quote:
Originally Posted by Sy#1991 View Post
For brakes I'm going with the ctsv 4 pistons and c6 z06 rotors.
Will these bolt to the newer knuckle without and adapter??
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Old 12-05-2016, 08:42 AM   #8
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Re: 2000+ spindle/knuckle

Quote:
Originally Posted by cloneman315 View Post
Post your project please. I am getting ready to do a upgrade to me front. I already have the H boost
I started a build thread a couple months ago but I'm doing a complete tear down to frame and building up from there. I hope to have front suspension, steering and front brakes setup by spring time.
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Old 12-05-2016, 08:43 AM   #9
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Re: 2000+ spindle/knuckle

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Originally Posted by mattw View Post
Will these bolt to the newer knuckle without and adapter??
I think you still need the brackets from Renzfab. I remember reading about the newer knuckles just for the newer bearings without needed the extra seal in knuckle.?
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Old 12-06-2016, 02:52 AM   #10
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Re: 2000+ spindle/knuckle

The 2nd gen hub uses a different outer C/V joint and seal arrangement.
The 2nd gen bearing will work with the 1st gen outer C/V, but the seal integrity is compromised, and water and dirt can get into the bearing. I know the 1st gen bearing won't fit into the 2nd gen knuckle.

For my Typhoon conversion I am installing 2nd gen outer C/V joints on my original 1st gen axle shafts. I may go back and retrofit 2nd gen outer C/V's to the DD too at some point.
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Old 12-06-2016, 05:17 AM   #11
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Re: 2000+ spindle/knuckle

That seems like a lot of work for the newer style bearing.
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Old 12-06-2016, 07:22 AM   #12
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Re: 2000+ spindle/knuckle

Are the 2nd Gen axles different bolt pattern at the front diff? Does anyone know the oem part # for 2nd Gen knuckles?

Last edited by Sy#1991; 12-06-2016 at 07:48 AM..
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Old 12-06-2016, 12:26 PM   #13
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Re: 2000+ spindle/knuckle

Quote:
Originally Posted by dgoodhue View Post
That seems like a lot of work for the newer style bearing.
The idea is to make it part of an all-OEM front brake upgrade. It's not tough at all to change the outer C/V joints, but you have to be prepared to deal with the clamps on the boots. The most reliable way to compress the clamps so that they don't seep grease is to use a special tool. I have one, it was about $100 IIRC.

I don't know why one would want just the 2nd gen bearing. And you can't get it without also doing the spindles and some kind of brake caliper change.
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Old 12-06-2016, 12:28 PM   #14
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Re: 2000+ spindle/knuckle

Quote:
Originally Posted by Sy#1991 View Post
Are the 2nd Gen axles different bolt pattern at the front diff?
Yes they arfe a different pattern. From 98-up, the inner joints are splined into the diff. No bolt flange like the SyTy has.

There is an axle with the 1st gen bolt flange inners, and the 2nd gen bearing outers. It will be for 1996 and 1997 Bravada and the 97 AWD Blazer and Jimmy 4-door only. Nothing else.
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Old 12-06-2016, 02:58 PM   #15
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Re: 2000+ spindle/knuckle

Quote:
Originally Posted by DaveP View Post
The idea is to make it part of an all-OEM front brake upgrade. It's not tough at all to change the outer C/V joints, but you have to be prepared to deal with the clamps on the boots. The most reliable way to compress the clamps so that they don't seep grease is to use a special tool. I have one, it was about $100 IIRC.

I don't know why one would want just the 2nd gen bearing. And you can't get it without also doing the spindles and some kind of brake caliper change.
I understand why one would do the conversion for the improved brakes. If you read his post, he is adding cts-v calipers and z06 rotors which will require adapters anyways whether or not he used the 1st or 2nd gen spindles.
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