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A-body 8 3/4 brake backing plates question #493288
10/10/09 05:25 PM 10/10/09 05:25 PM
Joined: Dec 2003
Posts: 357
St. Paul, MN
S
stat5 Offline OP
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stat5  Offline OP
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Joined: Dec 2003
Posts: 357
St. Paul, MN
Are all a-body 8 3/4 backing plates the same? For instance will a 72 or 73 backing plate be the the same as 69 backing plate?

Thanks
Re: A-body 8 3/4 brake backing plates question [Re: stat5] #493289
10/10/09 05:34 PM 10/10/09 05:34 PM
Joined: Jan 2003
Posts: 27,480
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autoxcuda Offline
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Quote:

Are all a-body 8 3/4 backing plates the same? For instance will a 72 or 73 backing plate be the the same as 69 backing plate?

Thanks



As far as I have seen and know the backing plates look the same. The certainly will function the same. IIRC, in '70 they started using bell hat drums (which are 100% interchangable). But that had nothing to do with the backing plate.

FYI, no such thing as a 73 A-body 8 3/4. 66-72 only.
Re: A-body 8 3/4 brake backing plates question [Re: autoxcuda] #493290
10/10/09 09:33 PM 10/10/09 09:33 PM
Joined: Jun 2003
Posts: 21,489
It's a dry heat
gtx6970 Offline
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Quote:

Quote:

Are all a-body 8 3/4 backing plates the same? For instance will a 72 or 73 backing plate be the the same as 69 backing plate?

Thanks



As far as I have seen and know the backing plates look the same. The certainly will function the same. IIRC, in '70 they started using bell hat drums (which are 100% interchangable). But that had nothing to do with the backing plate.

FYI, no such thing as a 73 A-body 8 3/4. 66-72 only.



so then where do the A-body 8-3/4 housings with big bolt pattern come from ? I've seen a couple over the years and have no reason to believe they were modified housings are redrilled axles
Re: A-body 8 3/4 brake backing plates question [Re: gtx6970] #493291
10/10/09 09:51 PM 10/10/09 09:51 PM
Joined: Jan 2003
Posts: 8,016
Polson, MT
DoctorDiff Offline
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DoctorDiff  Offline
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Joined: Jan 2003
Posts: 8,016
Polson, MT
Chrysler never made a 5 x 4 1/2" bolt pattern A-body 8 3/4" rearend.

If you saw one it had aftermarket axles or resplined truck/C-body axles (very common now).

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