6 lug rotors and drop spindles?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bazooka · 05-18-2009, 04:07 AM

I was curious if the 6 lug disk brake rotors from CPP would work on any aftermarket drop spindle for our trucks 71 and later? CPP says their 6 lug rotors will fit their drop spindles or stock 1971-72 and 1973-87 stock spindles..

Well if they work on stock spindles they should work on my aftermarket drop spindles too right??

I have DJM 3" spindles that work with all the stock brake parts for 1 1/4 rotors.

They just word it that way because they dont want you to buy someone elses spindle right?

http://www.classicperform.com/Store/...ruck/CP4R5.htm

Does anyone else carry these rotors?? I'd like to switch to 6 lug in the front.. Right now I have 5 lug rotors from a 85

SCOTI · 05-18-2009, 09:59 AM

Wes & GMC Pauls both had 6-lug rotors as well as ECE. If the rotor will work on a stock 71-87 GM spindle, it will fit a drop spindle as well. The caveat is determining if the spindles are for 1.00" lt. duty brakes (avail from 81-87 IIRC) or the 1.25" HD brakes (71-87). Most of the 6-lug aftermarket rotors are of the 1.25" variety.

ruffrida2005 · 05-18-2009, 12:08 PM

I would stay away from the CPP, I've heard a lot of bad things about them lately. I bought mine from performanceonline.com and they were cheaper then CPP. Mine came with 2 1/2 drop from McGaughy. I got the SD crossmember with the 73-87 arms on my 64. I got my whole brake kit 3 days after I ordered it.

Bazooka · 05-18-2009, 12:10 PM

Quote:

Originally Posted by ruffrida2005

I would stay away from the CPP, I've heard a lot of bad things about them lately. I bought mine from performanceonline.com and they were cheaper then CPP. Mine came with 2 1/2 drop from McGaughy. I got the SD crossmember with the 73-87 arms on my 64. I got my whole brake kit 3 days after I ordered it.

Yeah, thats why I asked if anyone else carried the 6 lug rotors..

70 Suburban · 06-10-2009, 10:42 PM

gm has 6 lug rotors but u would have to use the 88-93 drop spindle

ruffrida2005 · 06-11-2009, 12:25 AM

does the ball joints bolt onto our Arms? and do you know the size of the spindle? I've been told that the 92 3/4 rotors bolt onto the 71-71 spindle!

**Captainfab** · 06-11-2009, 12:37 AM

Quote:

Originally Posted by ruffrida2005

does the ball joints bolt onto our Arms?

You have to switch to a '63-'87 C20 lower control arm

Quote:

Originally Posted by ruffrida2005

and do you know the size of the spindle? I've been told that the 92 3/4 rotors bolt onto the 71-71 spindle!

No, the '88-'09 light duty 3/4 ton rotors won't work on the '69-'87 spindle.....they're close but the caliper won't line up with the rotor. You have to use the '88-'98 1/2 ton or light duty 3/4 ton spindle.

ruffrida2005 · 06-11-2009, 12:59 AM

thanks for the info!

70 Suburban · 06-11-2009, 06:56 AM

no u will use the 88-93 spindle. use the 69-87 3/4 ton lower arms and stock upper. use the 88-93 ball joints. you will have to use the 1.25 spindle and rotor combo to keep six lug

**ChiefRocka** · 06-11-2009, 09:03 AM

Quote:

Originally Posted by 70 Suburban

gm has 6 lug rotors but u would have to use the 88-93 drop spindle

Do you have to stop at 93...or can you use an 88-98 spindle ??

SCOTI · 06-11-2009, 10:04 AM

Quote:

Originally Posted by ChiefRocka

Do you have to stop at 93...or can you use an 88-98 spindle ??

88-98 is the same. From what I remember, the difference is single vs. ext. cab p/n's.

70 Suburban · 06-11-2009, 11:24 AM

The only thing that changed was the abs sensors

ruffrida2005 · 06-11-2009, 04:02 PM

I wish I knew all thise before I bought my break kit.

**Captainfab** · 06-12-2009, 12:15 AM

Quote:

Originally Posted by Captainfab

You have to switch to a '63-'87 C20 lower control arm

No, the '88-'98 light duty 3/4 ton rotors won't work on the '69-'87 spindle.....they're close but the caliper won't line up with the rotor. You have to use the '88-'98 1/2 ton or light duty 3/4 ton spindle.

There fixed it.....I hate not being able to edit posts.....and having un-cooperative fingers.

70 Suburban · 06-12-2009, 01:36 PM

Well you were right 88-09 will not work... Hehe

502tripower · 06-13-2009, 01:07 PM

Quote:

Originally Posted by Captainfab

There fixed it.....I hate not being able to edit posts.....and having un-cooperative fingers.

yeah, what is the deal with not being able to edit your post now?

I don't get it?

protrash64 · 06-13-2009, 02:10 PM

Quote:

Originally Posted by 502tripower

yeah, what is the deal with not being able to edit your post now?

I don't get it?

They're shootin' for 'first time quality' around here I guess.......

502tripower · 06-13-2009, 10:31 PM

Quote:

Originally Posted by protrash64

They're shootin' for 'first time quality' around here I guess.......

Or a higher post count.....

joe231 · 06-13-2009, 11:39 PM

Quote:

Originally Posted by 502tripower

yeah, what is the deal with not being able to edit your post now?

I don't get it?

there were some threads about it in the forum feedback and suggestions section....people were getting pissed at the mods here and deleting every post they had ever made...it was a real headache for the forum staff....so a few bad apples....you know the rest

now you have like 5 minutes to edit then the option goes away....

05-18-2009, 04:07 AM	#1
Bazooka Keepin it old school Join Date: Jul 2008 Location: Ca Posts: 672	6 lug rotors and drop spindles?? I was curious if the 6 lug disk brake rotors from CPP would work on any aftermarket drop spindle for our trucks 71 and later? CPP says their 6 lug rotors will fit their drop spindles or stock 1971-72 and 1973-87 stock spindles.. Well if they work on stock spindles they should work on my aftermarket drop spindles too right?? I have DJM 3" spindles that work with all the stock brake parts for 1 1/4 rotors. They just word it that way because they dont want you to buy someone elses spindle right? http://www.classicperform.com/Store/...ruck/CP4R5.htm Does anyone else carry these rotors?? I'd like to switch to 6 lug in the front.. Right now I have 5 lug rotors from a 85

05-18-2009, 09:59 AM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,066	Re: 6 lug rotors and drop spindles?? Wes & GMC Pauls both had 6-lug rotors as well as ECE. If the rotor will work on a stock 71-87 GM spindle, it will fit a drop spindle as well. The caveat is determining if the spindles are for 1.00" lt. duty brakes (avail from 81-87 IIRC) or the 1.25" HD brakes (71-87). Most of the 6-lug aftermarket rotors are of the 1.25" variety. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

05-18-2009, 12:08 PM	#3
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: 6 lug rotors and drop spindles?? I would stay away from the CPP, I've heard a lot of bad things about them lately. I bought mine from performanceonline.com and they were cheaper then CPP. Mine came with 2 1/2 drop from McGaughy. I got the SD crossmember with the 73-87 arms on my 64. I got my whole brake kit 3 days after I ordered it. __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

06-10-2009, 10:42 PM	#5
70 Suburban Rods Join Date: Nov 2002 Location: Bryan, TX Posts: 1,398	Re: 6 lug rotors and drop spindles?? gm has 6 lug rotors but u would have to use the 88-93 drop spindle __________________ Just keepin it simple. 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women)

06-11-2009, 12:25 AM	#6
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: 6 lug rotors and drop spindles?? does the ball joints bolt onto our Arms? and do you know the size of the spindle? I've been told that the 92 3/4 rotors bolt onto the 71-71 spindle! __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

06-11-2009, 12:59 AM	#8
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: 6 lug rotors and drop spindles?? thanks for the info! __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

06-11-2009, 06:56 AM	#9
70 Suburban Rods Join Date: Nov 2002 Location: Bryan, TX Posts: 1,398	Re: 6 lug rotors and drop spindles?? no u will use the 88-93 spindle. use the 69-87 3/4 ton lower arms and stock upper. use the 88-93 ball joints. you will have to use the 1.25 spindle and rotor combo to keep six lug __________________ Just keepin it simple. 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women)

06-11-2009, 11:24 AM	#12
70 Suburban Rods Join Date: Nov 2002 Location: Bryan, TX Posts: 1,398	Re: 6 lug rotors and drop spindles?? The only thing that changed was the abs sensors __________________ Just keepin it simple. 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women)

06-11-2009, 04:02 PM	#13
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: 6 lug rotors and drop spindles?? I wish I knew all thise before I bought my break kit. __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

06-12-2009, 01:36 PM	#15
70 Suburban Rods Join Date: Nov 2002 Location: Bryan, TX Posts: 1,398	Re: 6 lug rotors and drop spindles?? Well you were right 88-09 will not work... Hehe __________________ Just keepin it simple. 1965 C-10 Ext cab build. 350??(Does it count at 2 truck if I had to cut one up?) 1966 C-10 lwb 283 auto 1970 Suburban in pieces 1971 Blazer 4wd....restore someday. all factory CST 1972 Blazer 4wd parts truck still a roller 1972 GMC Sierra Grandee 1998 Chevy ext driver. 2005 F**D the wife drive...(cant fix women)

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