Quote:
Originally Posted by Scarebird
yes, and only works on 1970-81 Firebirds.
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Quote:
Originally Posted by Schurkey
For the record, the " spindle" is the steel "rod" that's pressed-into the iron casting; together they're called the "Steering Knuckle". The iron casting also includes the caliper mount, if we're talking about the OEM GM A/F/X/B/C steering knuckle design--essentially the same geometry although several different casting numbers/part numbers owing to different bearing sizes or casting revisions. The 12" knuckle/rotor system fits heaps and piles of GM vehicles including those retrofitted with the H-O Racing "Tall Spindle" disc brake conversion for '64--'72 A-body.
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So this means upgrading a 1st gen bird to 12" front disc brakes from a late 70's A body would require swapping in the steering knuckle - is geometry the same?
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Will Rivera
'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
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