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CLASSIC CAR GUY
Transport and Title Guru
Joined: August 09, 2010
Posts: 1608
Location: Phoenix AZ, but originally from Long Island NY
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 Posted: Sun Feb 13, 2011 2:49 am Post subject: Absolute junk brake drums BDC brand, check this crap out!! |
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I decided to reindex my torsions for a little hight on the rear of my 65' Baja tonight, so i put it on the lift and as im lifting it off the ground i notice the rear wheel "Drop" as it comes of the ground,,,  strange, so i grab the wheel and its got some play in it, check other side, same thing?
Pop wheels off figuring axle nut was loose, but i didn't think so in the back of my head that they both were loose and i remember replacing the drums and
TorQ'ed the nuts when i reassembled before Christmas when i replaced the axles , so both nuts are tight, i take them off and the drums are loose, axle nuts has eaten up front of drums and half of the splines are shot on the drums, more so on drivers side but both sides are junk, amazing with less than 40 miles of driving, which was only one weekend at Glamis, and i didn't even hammer the thing!! I took it easy because i just replaced both axles after a break weekend before Xmas never again will i use BDC drums, i called Napa where i have an account and ordered a new set and there from Brembo so we will see if there better, i may have a set of OG german ones but if not i have to have a set on hand, anyone else have this happen with BDC drums??,,,oh yeah and my napa guy is taking the drums back and giving me a credit, see the pics below
look, half of the splines are gone!!  see how thin they are now and you can see a step at the end of there orig width,,,
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quadrazer
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Joined: April 11, 2010
Posts: 295
Location: Castalia, Ohio
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| Posted: Sun Feb 13, 2011 8:41 am Post subject: |
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That is crazy! Goes to show you have to be careful on what type of aftermarket parts you get. At least you caught it before it left ya stranded somewhere.
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greg mgm
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Joined: October 07, 2004
Posts: 573
Location: Pine Cove/ IdyllwildCA
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| Posted: Sun Feb 13, 2011 9:37 am Post subject: |
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| I had the same thing happen years ago but it was caused by the spacers crushing slightly, loosening the drum and messing up the splines like yours. Damn cheap spacers! |
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towd
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Joined: June 20, 2005
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| Posted: Sun Feb 13, 2011 12:31 pm Post subject: |
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| Those drums were ran loose, no way around that .. |
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CLASSIC CAR GUY
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Joined: August 09, 2010
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Location: Phoenix AZ, but originally from Long Island NY
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| Posted: Mon Feb 14, 2011 9:53 am Post subject: |
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| towd wrote: |
| Those drums were ran loose, no way around that .. |
no they were tight, definitly tight, what happend is the front of the drum behind the nuts actually deteriorated behind the axle nut, just crap material
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58' Rag'
60' Type 1
61' Type 1
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66' Type 1
66' Vert'
67' Type 1
"every one wants to reinvent the wheel, but nobody knows how to make it round"
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petrol punk
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Joined: August 21, 2007
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Location: Las Vegas, NV
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| Posted: Mon Feb 14, 2011 11:24 am Post subject: |
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This is why you will often hear to only run OG drums if your doing any off roading. Get a set of those and be glad you caught the problem before you were out on the road.
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CLASSIC CAR GUY
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Joined: August 09, 2010
Posts: 1608
Location: Phoenix AZ, but originally from Long Island NY
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| Posted: Mon Feb 14, 2011 11:31 am Post subject: |
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| petrol punk wrote: |
| This is why you will often hear to only run OG drums if your doing any off roading. Get a set of those and be glad you caught the problem before you were out on the road. |
In looking for a german drums, what to look for on drum to make sure its OG? i have the old set that i originally took off and replaced because of a stripped stud, if here there germans im going to just drill them and press in studs
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66' Vert'
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"every one wants to reinvent the wheel, but nobody knows how to make it round"
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jsturtlebuggy
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| Posted: Mon Feb 14, 2011 12:36 pm Post subject: |
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Check your spacer the drum rides against.
It may be worn from drum being loose.
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CLASSIC CAR GUY
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Location: Phoenix AZ, but originally from Long Island NY
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| Posted: Mon Feb 14, 2011 12:43 pm Post subject: |
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| jsturtlebuggy wrote: |
Check your spacer the drum rides against.
It may be worn from drum being loose. |
got a new pair going on just for that reason..
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58' Rag'
60' Type 1
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"every one wants to reinvent the wheel, but nobody knows how to make it round"
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kbwakesk8
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Joined: December 08, 2005
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| Posted: Mon Feb 14, 2011 1:25 pm Post subject: |
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| my friend spun the center out of his drum and they where tight. all the splines where in the stub. |
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STOICH
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Location: Fallbrook
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| Posted: Tue Feb 15, 2011 7:26 am Post subject: |
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| towd wrote: |
| Those drums were ran loose, no way around that .. |
kinda leaning this way myself... I learned this one the hard way, destroying 3 drums in a month...2 brazilian, and a german. Came to find my spacer had crushed just enough to allow 300 ft lbs of torque, but I was torquing nut against axle splines, not against the drum itself.... good luck on your quest.
I will admit, however, I did roll that car because I broke the entire center out of the brazilian drum, and do highly recommend german OE drums over anything else...
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CLASSIC CAR GUY
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Location: Phoenix AZ, but originally from Long Island NY
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| Posted: Tue Feb 15, 2011 1:50 pm Post subject: |
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| STOICH wrote: |
| towd wrote: |
| Those drums were ran loose, no way around that .. |
kinda leaning this way myself... I learned this one the hard way, destroying 3 drums in a month...2 brazilian, and a german. Came to find my spacer had crushed just enough to allow 300 ft lbs of torque, but I was torquing nut against axle splines, not against the drum itself.... good luck on your quest.
I will admit, however, I did roll that car because I broke the entire center out of the brazilian drum, and do highly recommend german OE drums over anything else... |
Well after a few things i looked at i found the cause, see pics below.
The orig spacer did crush beyod spec and the back side od the axel nut was beat up prior to me swapping out the last set of drums, so when it was TQ'd it really wasn't and it just beat its self up because nut was beat,spacer crushed.
So now theres a new spacer,nut with larger surface area and drum installed and tightened to spec so were good to go.
note the beat up drum from the nut 
note the nut beat up and rounded over hence the nut is technically not as tall as it should be
new nut with larger surface area for drum side 
new nut, better contact area than just a nut!! 
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"every one wants to reinvent the wheel, but nobody knows how to make it round"
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STOICH
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| Posted: Tue Feb 15, 2011 2:04 pm Post subject: |
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I have always needed a spacer between the drum and bearing, and a space between drum and nut... (on IRS conversions) when I bought the disc brakes, it came with a thicker spacer to replace the thinner exterior spacer... hope that helps
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CLASSIC CAR GUY
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Location: Phoenix AZ, but originally from Long Island NY
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| Posted: Tue Feb 15, 2011 2:30 pm Post subject: |
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| STOICH wrote: |
I have always needed a spacer between the drum and bearing, and a space between drum and nut... (on IRS conversions) when I bought the disc brakes, it came with a thicker spacer to replace the thinner exterior spacer... hope that helps |
THANKS FOR THE INFO!! something to keep in mind for down the road
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58' Rag'
60' Type 1
61' Type 1
62' Type 1
64' Type 1
66' Type 1
66' Vert'
67' Type 1
"every one wants to reinvent the wheel, but nobody knows how to make it round"
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Vanapplebomb
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| Posted: Tue Dec 11, 2012 1:40 am Post subject: |
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(post resurrection)
So now that we know the crushed spacer was in one the action, what is the verdict on the drum? Still a crappy drum, or are they a viable replacement?
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CLASSIC CAR GUY
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| Posted: Tue Dec 11, 2012 10:15 am Post subject: |
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dont really know, after that fix i drove it a few miles on the street not off road and ended up selling it
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58' Rag'
60' Type 1
61' Type 1
62' Type 1
64' Type 1
66' Type 1
66' Vert'
67' Type 1
"every one wants to reinvent the wheel, but nobody knows how to make it round"
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getrdone
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| Posted: Tue Dec 11, 2012 8:25 pm Post subject: |
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You need to do it like this!
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KrAzY-BaJa
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tobiism
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| Posted: Tue Dec 11, 2012 10:22 pm Post subject: |
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oh MAN!!!! figure out the cause?
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JPro62
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| Posted: Sat Jun 23, 2018 3:43 pm Post subject: Re: Absolute junk brake drums BDC brand, check this crap out!! |
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Had this happen while autocrossing. Inside the drum is cast the letters BDC, 2, diameter tolerance.
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Last edited by JPro62 on Thu Jun 28, 2018 1:08 pm; edited 2 times in total |
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