Lowering a 67 gmc - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northern 85 · 06-20-2008, 06:58 PM

Is it possible to get drop spindles for drum brakes? I know everyone is going to say switch to disk,but i really like my 6 bolt ralleys,and the 67 chevy that i used to own had power drum brakes that would put you through the windshield! Any thoughts?

dave2953 · 06-20-2008, 07:26 PM

I've never seen them and I'm quite certain they aren't made. You can get modded lower a-arms for drum brakes, but they are pretty expensive to buy IIRC.

68gmsee · 06-20-2008, 08:14 PM

Quote:

Originally Posted by northern 85

Is it possible to get drop spindles for drum brakes? I know everyone is going to say switch to disk,but i really like my 6 bolt ralleys,and the 67 chevy that i used to own had power drum brakes that would put you through the windshield! Any thoughts?

Go with 6 bolt drop disc spindles. A lot of vendors sell them. I agree that power drum brakes will lock the brakes, but that is not always good. I have trouble controlling my 68 with power drum brakes. Usually when I have to stop real quick they tend to lock up too quickly. I think discs would be better in that area.

Here's a site on an install of 6 lug spindles. http://www.earlyclassic.com/tech.asp...arly%20Braking

northern 85 · 06-20-2008, 08:31 PM

Thanks ill check it out.

chevguy7 · 06-20-2008, 08:46 PM

I wanted to keep my truck a 6 lug so I went with the 6 lug disc swap. The set up has not been that hard so far.

tcb-1 · 06-20-2008, 09:23 PM

got the McGaughy's 2.5 drop, 6 lug disc brake/spindles on my rig. I was quite happy with the fit, finish, and price!

67_C-30 · 06-20-2008, 09:26 PM

Quote:

Originally Posted by tcb-1

got the McGaughy's 2.5 drop, 6 lug disc brake/spindles on my rig. I was quite happy with the fit, finish, and price!

What did it cost for your set up and where did you it Doug?

PanelDeland · 06-20-2008, 09:47 PM

I got mine from Tim Christian(site Vendor).I can't remember the cost but it worked great.I had an issue with the front springs though.I had installed the passenger side spindle and all.Whaen I dropped the old sppindle off the Ball joint on the drivers side the spring came out in 3 pieces.That was Thurs afternoon about 4:00.I called Tim and asked if he had new stock height springs.His reply I have them in stock and i'm boxing up wheels to ship right now so I will get your springs out,too.I figured I was held up until Mon. but Fri about 4:00 when I got home they were on the porch.
There are several write ups in the suspension forum to give you a better idea of what you're getting into if you've never done a spindle before.It's a good refresher even if you have.

tcb-1 · 06-20-2008, 09:48 PM

James,
GMC Paul's pn# is 133163. cost is $510 and you get......

http://www.gmcpauls.com/pictures/6lugwspindles.jpg

I'm very happy with it and this is coming from an engineer that works in a machine shop!

67_C-30 · 06-20-2008, 10:18 PM

Quote:

Originally Posted by tcb-1

I'm very happy with it and this is coming from an engineer that works in a machine shop!

UH OH!!! I'm a CNC programmer and die and mold maker, so I better take a close look at it. Don't know if can take the word of ya'll "if I can draw it on autocad, it be made, right?" guys!!!

-j/k

[SOAPBOX_ON]
You gotta excuse me, I have been butting heads with an engineer that decided to make a "revision" on the dump grooves of a seal mold last week that we have making for over 10 years. His revision was to intended to lengthen the life of the mold because as the chrome plating and the lands on the cavity wear they leave a little bigger parting seam and eventually begin to leave flashing. His big idea was to make a staggered double sealing land that would seal better after it wore because there were 2 sealing surfaces. To do this, the original size of the land had to be reduced by almost 50% in width. Knuckle draggin machinist here said it would wear out twice as fast if the land was twice the size, but I was wrong. The mold was scrapped in about 10 or 12 parts.

The pressure of the molding process was too much on the .05mm land, and it just rolled over causing the second so called sealing surface to fail instantly. You think I'm gloating a little? You bet I am!

[/SOAPBOX_OFF]

Thanks for the info Doug!

tcb-1 · 06-20-2008, 10:35 PM

James,
I know what your talking about. I started out my career as a designer on Autocad and Pro/E. I did my time in the trenches and now at 37 I am school (again) to get my BS in mechanical engineering.

HOWEVER I have never forgot, or stop listening to the machinists. they know how to do what I have in my mind!

sorry to hijack!!

06-20-2008, 06:58 PM	#1
northern 85 Registered User Join Date: Mar 2005 Location: Fairfield Maine Posts: 1,759	Lowering a 67 gmc Is it possible to get drop spindles for drum brakes? I know everyone is going to say switch to disk,but i really like my 6 bolt ralleys,and the 67 chevy that i used to own had power drum brakes that would put you through the windshield! Any thoughts?

06-20-2008, 07:26 PM	#2
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: Lowering a 67 gmc I've never seen them and I'm quite certain they aren't made. You can get modded lower a-arms for drum brakes, but they are pretty expensive to buy IIRC. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250

06-20-2008, 08:31 PM	#4
northern 85 Registered User Join Date: Mar 2005 Location: Fairfield Maine Posts: 1,759	Re: Lowering a 67 gmc Thanks ill check it out.

06-20-2008, 08:46 PM	#5
chevguy7 Registered User Join Date: Oct 2006 Location: Washington Posts: 316	Re: Lowering a 67 gmc I wanted to keep my truck a 6 lug so I went with the 6 lug disc swap. The set up has not been that hard so far. __________________ 1970 C10 - ECE 3.5/5 drop, dual exhaust with turbo mufflers, front discs http://67-72chevytrucks.com/vboard/s...d.php?t=272458 2000 Buick Regal GS - Supercharged 3.8 V6 240hp, 1/4 mile 15 seconds

06-20-2008, 09:23 PM	#6
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Lowering a 67 gmc got the McGaughy's 2.5 drop, 6 lug disc brake/spindles on my rig. I was quite happy with the fit, finish, and price! __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson

06-20-2008, 09:47 PM	#8
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Lowering a 67 gmc I got mine from Tim Christian(site Vendor).I can't remember the cost but it worked great.I had an issue with the front springs though.I had installed the passenger side spindle and all.Whaen I dropped the old sppindle off the Ball joint on the drivers side the spring came out in 3 pieces.That was Thurs afternoon about 4:00.I called Tim and asked if he had new stock height springs.His reply I have them in stock and i'm boxing up wheels to ship right now so I will get your springs out,too.I figured I was held up until Mon. but Fri about 4:00 when I got home they were on the porch. There are several write ups in the suspension forum to give you a better idea of what you're getting into if you've never done a spindle before.It's a good refresher even if you have. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

06-20-2008, 09:48 PM	#9
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Lowering a 67 gmc James, GMC Paul's pn# is 133163. cost is $510 and you get...... http://www.gmcpauls.com/pictures/6lugwspindles.jpg I'm very happy with it and this is coming from an engineer that works in a machine shop! __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson

06-20-2008, 10:35 PM	#11
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Re: Lowering a 67 gmc James, I know what your talking about. I started out my career as a designer on Autocad and Pro/E. I did my time in the trenches and now at 37 I am school (again) to get my BS in mechanical engineering. HOWEVER I have never forgot, or stop listening to the machinists. they know how to do what I have in my mind! sorry to hijack!! __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson



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