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66 brake swap

2K views 22 replies 8 participants last post by  CHOCK 
#1 ·
So I found a real nice SSBC front disc brake kit for sale that are bolted to 68 Cougar spindles.

So I know the 68 spindles are a little different than the 66 but should the brakes bolt up to my 66 spindles? I will not be buying the spindles, only the brake setup.

Thanks for the help!


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#17 ·
The drum 71-73 spindles are not that close to 65/66 in geometry.
We always had to "bump" them. (It wasn't far..... maybe 3/8-1/2"
in idler and pitman height. End of idler and end of pitman had to go
up in the chassis. The pitman deal is a PITA. Idler not too tough)

The 71-73 disc spindle is closer to the 65/66 in geometry. Not too
bad on 67-70 either. Because of this, Doug based his big brake kit
on the 71-73 disc spindles.

ex-Global West GM
1991-1995
 
#19 ·
The 4 piston brakes will fit onto your 66 spindles provided they are 8 cylinder type.

To clarify, ALL 67-73 Mustang spec spindles and 75-80 Granada spindles have the SAME steering and suspension geometry. 70-73 and Granada spindles have the larger stub axle that uses the A12/A13 bearing set.

71-73 spindles are very similar to 70 type; they are a little beefier in construction than 70 type.
 
#21 ·
I'd be open to seeing numbers that show the 71-73 drum spindle
steering arms are in exactly the same place as those on the
71-73 disc spindles.
I've never seen that comparison and it would eliminate the
"gospel" I've been told previously.

ex-Global West GM
1991-1995
so we have two experts with differing opinions here, and we have another than did some actual measurements and noted a few differences, in the end however, all these spindles have been used on the early cars to great effect. so at this point unless someone comes up with a really good reason not to use any of the spindles listed in this thread, i say use which ever spindles best suit your needs.
 
#20 ·
I'd be open to seeing numbers that show the 71-73 drum spindle
steering arms are in exactly the same place as those on the
71-73 disc spindles.
I've never seen that comparison and it would eliminate the
"gospel" I've been told previously.

ex-Global West GM
1991-1995
 
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