Frequently Asked Questions

What bearings do I use for a 69 Mustang?

69 spindles have smaller axle on all except BOSS 302 and BOSS 429.  69 non-Boss spindles use A2 and A6 bearings. 70-73 spindles have larger diameter axle and use A12 and A13 bearings.

69 non-Boss spindles use smaller tie rod, same as 67-69 Mustang.

70 spindles use a larger tie rod that is a little larger than the 67-69 spindle, but smaller than the Granada spindle.

What hubs do I use on what spindles?

Hubs and rotors from 65-73 will fit either spindle as long as the bearings that fit the spindle axle are used. The OD of the bearings is the same for all years mentioned.

So, the 70-73 spindle has larger axle but the rollers in the bearings are actually smaller than the 65-69 bearing rollers.

Will your rear brakes work on the Torino (new style) bolt pattern?

Yes.  The big bearing cobra rear brackets will work with the Torino (new style) bolt pattern using 3/8” mounting bolts and will also fit the older style large bearing 9” flanges using ½” bolts.

The brake gap needs to be 2.50”.  That is measured from the outside of the housing flanges to the outside of the axle flange (where the rotor would fit, but not including the thickness of the rotor.

I was looking at your rear brake kits for my 64 Galaxie with a small bearing 9". Is the axle flange to housing end the same distance on all 9" rear ends of that era?

Mustang Steve brake brackets are designed for a 2-1/2” brake gap.  I am not 100% certain if the 1964 9” has that size gap, but it is easy to measure.  Simply measure from the mounting flange outer surface on the axle HOUSING to the mounting flange outer surface on the AXLE, with the drum removed.  You also may experience that the stub axle, where the brake drum or brake rotor would index on the axle, might be shorter than later versions.  If that is the case, you might want to weld one of the rotor centering rings to the existing stub axle to lengthen it where the rotor will be perfectly centered.  I am thinking the 64 will have the large 3.150” diameter bearing, so make sure prior to ordering to determine if you need the small bearing or the large bearing kit.

Do Vintage Wheel Works V45 17x8 wheels with 4.75” backspacing work with a 66 Fastback?

Yes and the 12.5” GT front brakes clears.

Do 67-73 spindles have the same geometry?


What is the standard brake gap?

2.5”  Note: the Cobra rear brackets will also work with a 2.375” brake gap.

If I have a booster I want to rebuild do you have a service which to rebuild it?

No, but we have heard a lot of great things about a company based out of Portland Oregon: Power Booster Exchange Inc.

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