So, it turns out I have disc brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

klstrphnky · 06-20-2007, 12:51 AM

Swapping wheels today, first time I recall having the fronts off. Was pleasantly surprised to find I had front disc brakes. Coolio. Now, can anyone help me figure out what they are off of, since I'm guessing they didn't come from the factory in 1970.

The caliper seems to be stamped "Delco Moraine" on the left and have the numbers "6473 499" on the right.

That also explains why the front tires stick out further than the rears.

1969k10stepside · 06-20-2007, 12:55 AM

In 70 it was a open knuckle axle (still drums though stock) meaning it was easy to convert to discs using that axle unlike the 69 and older axles...Meaning it could be the original axle but 71 and newer rotors,etc.I cant help you determine the year...

**special-K** · 06-20-2007, 06:41 AM

All 4wds were made with the front track wider than the rear.It`s possible that you have a late`70 that got the new brakes.Whatever the reason you have discs,those brakes look like they`ve been on there all along.

mrein3 · 06-20-2007, 07:44 AM

That groove in the front disc is a factory thing. Replacements don't have this groove. If that front axel wasn't factory on your truck, it was factory on somebody's 71 or 72 front 1/2 ton truck.

OLDIRON69 · 06-20-2007, 08:14 AM

Quote:

Originally Posted by mrein3

That groove in the front disc is a factory thing. Replacements don't have this groove. If that front axel wasn't factory on your truck, it was factory on somebody's 71 or 72 front 1/2 ton truck.

Thanks for the heads up on the groove, I have a set off a 2wd '71 that have that groove, I was thinking it was from running worn pads. I may just have my old ones turned instead of replacing..

klstrphnky · 06-21-2007, 12:53 AM

Quote:

Originally Posted by special-K

All 4wds were made with the front track wider than the rear.

Learn something new every day.

Quote:

Originally Posted by mrein3

That groove in the front disc is a factory thing. Replacements don't have this groove. If that front axel wasn't factory on your truck, it was factory on somebody's 71 or 72 front 1/2 ton truck.

Guess I'll find out when it's time to replace the pads.

Omnivec · 06-21-2007, 01:43 AM

Cool find, thats like finding change in the seat.

**special-K** · 06-21-2007, 05:56 AM

Quote:

Originally Posted by Omnivec

Cool find, thats like finding change in the seat.

Or,a wallet

.

06-20-2007, 12:51 AM	#1
klstrphnky Registered User Join Date: Jul 2005 Location: Northern Lower Michigan Posts: 20	So, it turns out I have disc brakes Swapping wheels today, first time I recall having the fronts off. Was pleasantly surprised to find I had front disc brakes. Coolio. Now, can anyone help me figure out what they are off of, since I'm guessing they didn't come from the factory in 1970. The caliper seems to be stamped "Delco Moraine" on the left and have the numbers "6473 499" on the right. That also explains why the front tires stick out further than the rears. __________________ '70 K/10 - 350/350 - In constant need of something

06-20-2007, 12:55 AM	#2
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: So, it turns out I have disc brakes In 70 it was a open knuckle axle (still drums though stock) meaning it was easy to convert to discs using that axle unlike the 69 and older axles...Meaning it could be the original axle but 71 and newer rotors,etc.I cant help you determine the year... Last edited by 1969k10stepside; 06-20-2007 at 12:57 AM.

06-20-2007, 06:41 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: So, it turns out I have disc brakes All 4wds were made with the front track wider than the rear.It`s possible that you have a late`70 that got the new brakes.Whatever the reason you have discs,those brakes look like they`ve been on there all along. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

06-20-2007, 07:44 AM	#4
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Re: So, it turns out I have disc brakes That groove in the front disc is a factory thing. Replacements don't have this groove. If that front axel wasn't factory on your truck, it was factory on somebody's 71 or 72 front 1/2 ton truck. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

06-21-2007, 01:43 AM	#7
Omnivec Registered User Join Date: May 2007 Location: CA Posts: 39	Re: So, it turns out I have disc brakes Cool find, thats like finding change in the seat. __________________ 67 3/4 Lwb Step side X San Diego County truck 70 3/4 berb was 402 Th400 Dana 60 now just the dana 70 3/4 lwb Fleet Choptop bagged th350 no eng yet 79 rx7 Wide body 350 TPI t5 flat black(The interceptor) 64 comet mounted on a 93 Thunderbird chassis.

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