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  10 x 2.5 rear brakes for 65-66

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Author Topic:   10 x 2.5 rear brakes for 65-66

Posts: 5
From: butler, pa. u.s.a.
Registered: Dec 2000

posted 05-13-2001 10:47 AM     Click Here to See the Profile for fran   Click Here to Email fran     Edit/Delete Message   Reply w/Quote
Does any one know which backing plates are used from the lincoln towncar. Are all the backing plates the same from 84 to 89. I have the 84 finned drums but need backing plates to match up.

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Posts: 2927
From: Va Beach
Registered: Jun 2000

posted 05-13-2001 05:15 PM     Click Here to See the Profile for sigtauenus   Click Here to Email sigtauenus     Edit/Delete Message   Reply w/Quote
Hmm, not sure on that one. We went around on this awhile back on whether or not backing plates actually have to be changed. Some say the deeper (10x2.5) drums have a different offset and thus the backing plate doesn't need changed, others say the 10x2.5 backing plate has the offset and needs to be used if you convert the brakes.

There is a technical article (which I wrote ) that lists a whole bunch of donor cars you can use to get the backing plates from and what I did to do this conversion.

Email me if you get stuck. I know there is a huge time frame where Ford backing plates interchanged regardless of rear end size/type but am not sure when it ended.

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Posts: 2680
From: Spencer, WV
Registered: Jan 2001

posted 05-13-2001 11:11 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
I installed 10"x2.5" drums on the rear of the mustang 8-10 years ago. Ford offered a kit for a short period of time back then.

I purchased everything together, backing plates to brake drums, and everything in between. I think the brakes came off a Ford Aerostar.

The mounting holes in the backing plates didn't match up to the housing perfectly, so I had to egg-out the backing plate holes a little to get them mounted, which wasn't a real problem. But, the centering holes in the brake drums are a little larger than the round end on the factory mustang axles. This allows the drum to be installed slightly off center... which can make the brakes feel warped.

It's kind of a pain, and I wouldn't fool with it again. Aftermarket liteweight rear disks are now becoming affordable at a few hundred dollars... and if you've got to have Ford parts, Motorsport offers a kit to install rear disks from an Explorer at a decent price.

Good Luck!

Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3

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Posts: 466
From: Redwood City, Ca. USA
Registered: Jan 2001

posted 05-14-2001 12:27 AM     Click Here to See the Profile for Doc   Click Here to Email Doc     Edit/Delete Message   Reply w/Quote
We got that size off a 67 Ranchero that bolted right to the 67 Mustang axle housing, it turned out that the backing plate was about 1/4" deeper but the drums were the same. These were both factory 390 cars. We used the same setup on Butchers 67 Cyclone to get more stall foot braking and it worked.

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