Author Topic: Front Disc Brakes  (Read 903 times)

Offline mojavered

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Front Disc Brakes
« on: March 19, 2009 - 03:06:38 PM »
Has anyone ever tried to use 73 front rotors on a 71?  My 71 already has front disc, but I ordered new rotors and they are for a 73.  The bearing race in the the hub is the wrong size and the 73 bearing ID is much larger.  I may just have to send them back, but I was wondering if there was an easy bearing conversion or something that anyone might know about.  Thanks.

Mojavered
71 Dodge Challenger R/T
Jason




Offline 426HEMI

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Re: Front Disc Brakes
« Reply #1 on: March 19, 2009 - 03:12:15 PM »
Spindles is what you would have to change.
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Offline brads70

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Re: Front Disc Brakes
« Reply #2 on: March 19, 2009 - 03:14:35 PM »
Yep the 73 and up inner bearing is 1.375" I've heard on here talking about someone making a bearing conversion but can't remember who? If you ever want to use bigger rotors you will need 73 up spindles or this "conversion kit". Me I'd find the spindles!
http://www.moparaction.com/tech/archive/disc-main.html

Brad
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Offline sixpakchallenger

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Re: Front Disc Brakes
« Reply #3 on: March 19, 2009 - 04:01:35 PM »
Dr Diff and Scarebird make them.

http://cgi.ebay.com/ebaymotors/70-72-Mopar-B-E-body-front-disc-brake-rotor-adapters_W0QQitemZ180335553444QQihZ008QQcategoryZ33564QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I used them on my 69 Newport because 73 Newport Spindles are very hard to find and 71 rotors are $$$$.

With the ease of finding the spindles you need, I wouldn't waste the time on the adaptors.

Or get the magnumforce drop spindles.
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Offline Bullitt-

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Offline brads70

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Re: Front Disc Brakes
« Reply #5 on: March 19, 2009 - 04:25:23 PM »
kit w/everything

http://www.piratejack.net/High-Performance/DBK6272LX-HP-Mopar-B-Body-E-Body-Full-Wheel-DBK.html



Just so you know these are not the big rotor conversion. But I'm sure they will work fine.
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
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 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline mojavered

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Re: Front Disc Brakes
« Reply #6 on: March 19, 2009 - 04:48:04 PM »
Thanks for the info.  I was kind of worried about that.  I just replaced all of my front suspension, only to find this ....  Isn't that the way it is supposed to go though?  A 2" drop on a big block?  Is that possible without doing some mods?  Also, is there a different sized hole in the upper balljoint mount on a 73 than 71?  Or is the size of the spindle shaft the only difference? 
Jason

Offline Chryco Psycho

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Re: Front Disc Brakes
« Reply #7 on: March 19, 2009 - 05:14:15 PM »
the spindle diameter is the only difference , the ball joint is the same

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