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75DBE
Official CCB Member
Joined: Sat Jul 16, 2011 8:37 am
Posts: 319
Location: Colorado Springs
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 "Slotted" Brake Drums So I was overhauling the front brakes (drum) on my 75 Bronco and I was surprised to see that the passenger side brake drum is grooved on the inside so that the brake shoes on that side end up having 1/4" inch grooves cut into them. It is only on that side. Is that normal?
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Now with disk brakes, has turned into my sons daily driver while he is home on Christmas break.
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| Sun Jul 22, 2012 6:57 pm |
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Viperwolf1
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Re: "Slotted" Brake Drums No. Might be time for new drums or even a disk conversion.
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| Sun Jul 22, 2012 9:53 pm |
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75DBE
Official CCB Member
Joined: Sat Jul 16, 2011 8:37 am
Posts: 319
Location: Colorado Springs
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Re: "Slotted" Brake Drums It is very odd. The drum seems to have been machined that way -- I wonder what would have made these two grooves develoip as they have. Yeah, I wish I could do the full up disc conversion right now, but I think I just need to get it on the road for a while!
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Now with disk brakes, has turned into my sons daily driver while he is home on Christmas break.
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| Sun Jul 22, 2012 10:05 pm |
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Viperwolf1
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Re: "Slotted" Brake Drums It's easy for them to machine themselves. Wear the shoes down to the rivets and you'll eventually get some grooves.
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| Sun Jul 22, 2012 11:25 pm |
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hockeydad4-22
Official CCB Member
Joined: Tue Nov 02, 2010 1:11 pm
Posts: 2378
Location: Highlands Ranch Colorado
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Re: "Slotted" Brake Drums What Viper said - more than likely someone let the shoes go to long at some point, the rivets wore the grooves into the drum, and they should have replaced the drum. Now you need to, as well as the shoes.
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[color=#BFFF40]Greg
If you are the smartest person in the room -
You are in the wrong room
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| Mon Jul 23, 2012 6:51 am |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm
Posts: 4074
Location: Gardnerville, NV
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Re: "Slotted" Brake Drums I had a drum on a 79 F250 "machine" itself into 2 pieces from a shoe that was improperly installed. I always wondered what the ringing noise from the rear end was. Finding out was very exciting!
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"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe
74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
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| Mon Jul 23, 2012 7:25 am |
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D&D72
Official CCB Member
Joined: Sun Sep 11, 2011 10:49 pm
Posts: 988
Location: Henderson, Co. Grand Lake, Co
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Re: "Slotted" Brake Drums I'm doing the front disc conversion So, I have all the front drum stuff if you need it.
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That guy John.... whatta Jerk.
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| Mon Jul 23, 2012 7:45 am |
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75DBE
Official CCB Member
Joined: Sat Jul 16, 2011 8:37 am
Posts: 319
Location: Colorado Springs
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Re: "Slotted" Brake Drums Well that is great, thanks! Sounds like something was installed incorrectly on the passenger side front, so I may just be able to use your drums! Thanks.
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Now with disk brakes, has turned into my sons daily driver while he is home on Christmas break.
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| Mon Jul 23, 2012 8:42 am |
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D&D72
Official CCB Member
Joined: Sun Sep 11, 2011 10:49 pm
Posts: 988
Location: Henderson, Co. Grand Lake, Co
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Re: "Slotted" Brake Drums PM sent
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That guy John.... whatta Jerk.
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| Mon Jul 23, 2012 9:20 am |
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Booger
Official CCB Member
Joined: Thu Dec 23, 2010 6:55 pm
Posts: 809
Location: Broomfield
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Re: "Slotted" Brake Drums Just think of those grooves as more surface area for the brakes to get a grip of. LOL
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Bob - Turning hydrocarbons into noise since 1970
Spiritual owner of the now Zoso mobile (1974 Bronco Ranger - EFI 351W-4R70W-ARB front and rear-STC softtop- High Country hood-3 1/2" WH lift- Cross inboard rear shock mnt- Duffs bumpers- Warn 8274- 33's- Cheby disc conversion)
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| Tue Jul 24, 2012 7:28 pm |
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HorseMan
Official CCB Member
Joined: Sat Jan 08, 2011 12:00 am
Posts: 57
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Re: "Slotted" Brake Drums Disc conversion
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| Thu Jul 26, 2012 7:29 pm |
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75DBE
Official CCB Member
Joined: Sat Jul 16, 2011 8:37 am
Posts: 319
Location: Colorado Springs
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Re: "Slotted" Brake Drums I think it is too late for the disc conversion -- before I took off the drums I bought all of the other rebuild parts! CRUD!
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Now with disk brakes, has turned into my sons daily driver while he is home on Christmas break.
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| Thu Jul 26, 2012 9:05 pm |
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