disc brakes

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426hemi

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Can someone let me know if 1973 A body disc brake spindle will fit a 1969 b body thank you
 
Yes, a 73 A body spindle will fit on a 69 B body car.
They are commonly used to do a disc brake swap with all the other appropriate parts.
 
426hemi said:
Can someone let me know if 1973 A body disc brake spindle will fit a 1969 b body thank you
Click to expand...

EDIT: Did not see the "b"
Yes but there's more to it. As mentioned, you need the matching upper A arms, and the 73 disc rotors will be the larger 4.5 bolt pattern, so "whatcha gonna do" with the rear? Also you may want to consider swapping them side to side so that the calipers on on the rear of the assembly, providing more clearance depending if/ what you have for an anti roll bar.

you need the later model disk brake upper and lower ball joints.
 
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Seems like there are two different opinions here.
Seems like I am reading you do and don’t need the upper control arms?

My dad has a 69 B-body that he wants to convert to disc. This info would be helpful. Please clarify.
 
go-fish said:
Seems like there are two different opinions here.
Seems like I am reading you do and don’t need the upper control arms?

My dad has a 69 B-body that he wants to convert to disc. This info would be helpful.
Click to expand...

You don’t need to change upper control arm on that 69 B-body to do a factory type disk swap.

All E and B bodies have large ball joints. /6 to Hemi. And they share the same upper control arms.

60-72 A-bodies all have smaller upper ball joints than B and E bodies. And the 60-72 upper control arms have a smaller hole to accept those smaller upper ball joints.

1973-1976 A-bodies with large bolt pattern disk or drums got larger upper ball joints and new upper control arms with larger holes to accept them. *Use these upper control arms when converting to A-body disk spindle or FMJ body disk spindle

1973-1976 small bolt pattern cars with 9” drum got the old small ball joints and upper control arms.
 
Ditto to post 11 above. Back in the day, the 73-76 A body disc donor to 66-70 B body w drums was a popular swap.
 
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