Are all Disc brake conversions 5 or 6 lug? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Snew · 07-26-2006, 10:18 AM

Hi. I'm new here and I've looked through all the FAQs I could find but couldn't find what I was looking for.

I've got a 69 Chevy C20 with 8 lugs. Everything I've seen involves going to 5 or 6 lugs, even for the 3/4 tons. Am I missing something or am I going to have carry 2 spares or convert to 6 lugs all the way around? Can I convert to Disc brakes and retain the 8 lug bolt pattern?

69gmctowrig · 07-26-2006, 10:33 AM

You can convert to disc brakes up front. You may have to get a bit more creative than a simple bolt on kit though. I'll do some research when i get home, but i'm sure you can covert to discs off of a newer 3/4 ton front end.

Edit: found a link. may be some help http://67-72chevytrucks.com/vboard/a...hp/t-5293.html
Here's a link for doing the rear axle too if you are interested. http://www.pirate4x4.com/tech/billav...kes/index.html

glock35ipsc · 07-26-2006, 11:07 AM

Classic Parts has an 8-lug kit:

http://www.classicparts.com/prodinfo...umber=71-978S8

**uncle** · 07-26-2006, 05:03 PM

Why not get a 71/72 setup?

Snew · 07-28-2006, 01:11 PM

Dunno. I haven't stumbled across anyone who has tried it. Think it'd work? What are the differences in the A arms and such? Would the spindles fit?

Solver · 07-29-2006, 01:06 AM

I would just unbolt the whole front unit off of a 71/72 8 bolt frame as they are disk brake units. It will bolt right in place of your 69 unit.

07-26-2006, 10:18 AM	#1
Snew Registered User Join Date: Jun 2006 Location: Hillsboro, OR Posts: 28	Are all Disc brake conversions 5 or 6 lug? Hi. I'm new here and I've looked through all the FAQs I could find but couldn't find what I was looking for. I've got a 69 Chevy C20 with 8 lugs. Everything I've seen involves going to 5 or 6 lugs, even for the 3/4 tons. Am I missing something or am I going to have carry 2 spares or convert to 6 lugs all the way around? Can I convert to Disc brakes and retain the 8 lug bolt pattern?

07-26-2006, 10:33 AM	#2
69gmctowrig Registered User Join Date: Jun 2006 Location: greenville, north carolina Posts: 42	Re: Are all Disc brake conversions 5 or 6 lug? You can convert to disc brakes up front. You may have to get a bit more creative than a simple bolt on kit though. I'll do some research when i get home, but i'm sure you can covert to discs off of a newer 3/4 ton front end. Edit: found a link. may be some help http://67-72chevytrucks.com/vboard/a...hp/t-5293.html Here's a link for doing the rear axle too if you are interested. http://www.pirate4x4.com/tech/billav...kes/index.html Last edited by 69gmctowrig; 07-26-2006 at 10:40 AM.

07-26-2006, 11:07 AM	#3
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Re: Are all Disc brake conversions 5 or 6 lug? Classic Parts has an 8-lug kit: http://www.classicparts.com/prodinfo...umber=71-978S8 __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 07-26-2006 at 11:07 AM.

07-26-2006, 05:03 PM	#4
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,286	Re: Are all Disc brake conversions 5 or 6 lug? Why not get a 71/72 setup?

07-28-2006, 01:11 PM	#5
Snew Registered User Join Date: Jun 2006 Location: Hillsboro, OR Posts: 28	Re: Are all Disc brake conversions 5 or 6 lug? Dunno. I haven't stumbled across anyone who has tried it. Think it'd work? What are the differences in the A arms and such? Would the spindles fit?

07-29-2006, 01:06 AM	#6
Solver Registered User Join Date: May 2000 Location: Storm Lake, Ia Posts: 1,449	Re: Are all Disc brake conversions 5 or 6 lug? I would just unbolt the whole front unit off of a 71/72 8 bolt frame as they are disk brake units. It will bolt right in place of your 69 unit. __________________ 1972 Cheyenne Super 20 LWB-Blue 1972 Cheyenne Super 10 LWB-Black 1972 Cheyenne Super 10 LWB-Red 1972 Cheyenne Super 10 LWB-green 1972 GMC 4x4 LWB-White 1971 Cheyenne 10 LWB-Ochre 1971 Cheyenne 20 Longhorn-Copper 1971 Cheyenne 20 Longhorn-Black 1969 Custom 10 LWB-lt blue 1968 GMC 3/4 ton-green 1968 1/2 ton swb stepside-silver 1967 Chevrolet CST 10 LWB-green 1967 Chevrolet custom 20 LWB-Maroon



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