#1  
Old 11-05-2024, 03:12 PM
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BigB BigB is offline
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Default Default Struggling with 1975 Firebird power steering and alternator configuration

I am restoring a 1975 Firebird Formula and unfortunately didn't remove the accessories myself. I also have multiple brackets. This is an A/C car that I believe has the 80amp alternator. I know the brackets on the power steering pump are the original, but cannot find any good pictures online, or diagrams to show which brackets to use and how everything mounts. I'm hoping someone here can assist with info and maybe take a quick picture or two of their setups for me if they are also using this power steering setup. Thanks in advance -B
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  #2  
Old 12-06-2024, 12:44 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
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Location: Calgary, AB, Canada
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Default

I believe that 1975 used the same brackets as 1976-1978;
That alternator is absolutely wrong - maybe that's your issue?

What cranshaft pully(ies) do you have?

What water pump pulley do you have?

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #3  
Old 12-06-2024, 05:54 PM
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Held for Ransom Held for Ransom is offline
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Also, what are the casting numbers on the inside of the 2 aluminum brackets (picture 2)?

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  #4  
Old 12-06-2024, 07:04 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
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I have come to understand that mis-matched pullies are THE biggest issue that people have with throwing belts (ect.)

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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