Dual piston brake upgrade - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gchemist · 02-22-2010, 09:07 AM

I received a few parts to upgrade my Jimmy. I'm installing dual piston calipers. The boneyard guy did not remove the knuckles. Parts are useless without the knuckles. I'm curious about the parts. They look like 4X4 parts but come from a 4X2 Blazer. Did GM make dual hub and bearing parts? Look at the pictures. The hubs are machined for axel shafts. You can see no shafts were in them.

95 S_Trucker · 02-22-2010, 09:15 AM

98 and newer 2wd blazers had the bolt in hubs like you have pictured

edit, after looking at those pictures i'm not sure what parts they gave you, they are not for an s-series though

gchemist · 02-22-2010, 03:24 PM

Oh, I just remembered the lug count! Thanks for reminding me. I'll take them back!!

bluex · 02-23-2010, 05:53 PM

I put a set on my '00 S10 that I had and they looked the same with the splines for an axle. I believe they use the same hubs for either 2/4wd. It has been awhile since I did that though. I also put the rear discs on it. That was a better upgrade IMO. It would stop from 60 in 126' according to my G-tech. It was a 4.3/auto ext cab. My friends 2.2/manual reg cab took 138'!

here is a thread where I did mine, in '03!

http://www.s-seriesforum.com/forum/s...ighlight=bluex

Rear brakes:

http://www.s-seriesforum.com/forum/s...ighlight=bluex

95 S_Trucker · 02-23-2010, 06:06 PM

2wd and 4wd use different hub assemblies. the 2wd doesnt have the hole for the axle shaft. and on 4wd, the axle shaft and axle nut hold the bearings together

02-22-2010, 09:07 AM	#1
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Dual piston brake upgrade I received a few parts to upgrade my Jimmy. I'm installing dual piston calipers. The boneyard guy did not remove the knuckles. Parts are useless without the knuckles. I'm curious about the parts. They look like 4X4 parts but come from a 4X2 Blazer. Did GM make dual hub and bearing parts? Look at the pictures. The hubs are machined for axel shafts. You can see no shafts were in them. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

02-22-2010, 09:15 AM	#2
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,179	Re: Dual piston brake upgrade 98 and newer 2wd blazers had the bolt in hubs like you have pictured edit, after looking at those pictures i'm not sure what parts they gave you, they are not for an s-series though Last edited by 95 S_Trucker; 02-22-2010 at 09:19 AM.

02-22-2010, 03:24 PM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: Dual piston brake upgrade Oh, I just remembered the lug count! Thanks for reminding me. I'll take them back!! __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

02-23-2010, 05:53 PM	#4
bluex Registered User Join Date: Jun 2004 Location: Spartanburg, SC Posts: 1,963	Re: Dual piston brake upgrade I put a set on my '00 S10 that I had and they looked the same with the splines for an axle. I believe they use the same hubs for either 2/4wd. It has been awhile since I did that though. I also put the rear discs on it. That was a better upgrade IMO. It would stop from 60 in 126' according to my G-tech. It was a 4.3/auto ext cab. My friends 2.2/manual reg cab took 138'! here is a thread where I did mine, in '03! http://www.s-seriesforum.com/forum/s...ighlight=bluex Rear brakes: http://www.s-seriesforum.com/forum/s...ighlight=bluex __________________ Paul '78 GMC Serria 15 Heavy Half. 361/NV3500/3.73. Former LWB NV3500 swap Trailing arm swap '98 ECSB Z71 daily driver -traded '03 burb. Family cruiser http://upstategmtrucks.com/ Last edited by bluex; 02-23-2010 at 06:04 PM. Reason: found my old thread

02-23-2010, 06:06 PM	#5
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,179	Re: Dual piston brake upgrade 2wd and 4wd use different hub assemblies. the 2wd doesnt have the hole for the axle shaft. and on 4wd, the axle shaft and axle nut hold the bearings together



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