#21  
Old 09-28-2020, 04:22 PM
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Transamric Transamric is offline
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Quote:
Originally Posted by eaglesan13 View Post
Do you know if the correct calipers for a 1970 Firebird would have similar casting numbers, and if so, what would they be? I'm trying to help a friend identify the correct calipers for his 1970 Trans Am restoration. His original calipers were lost by his body shop.
Pretty sure '70 caliper casting numbers are 5470125 & 5470126, as MTTNGOAT pictured above. Perhaps most of '71 production as well.

  #22  
Old 09-28-2020, 08:05 PM
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GRNMTGOAT GRNMTGOAT is offline
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Here’s the other sides. I had them rebuilt,but when I fitted them they both leaked,so I got a NAPA pair and put these aside.
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1970 T/A RA3 #'s match.
  #23  
Old 09-28-2020, 11:35 PM
eaglesan13 eaglesan13 is offline
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Thanks to both of you.

  #24  
Old 09-29-2020, 03:27 PM
NAPA68 NAPA68 is offline
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Good subject with great timing. I have what is thought to be the original calipers off of the 71 Chris and I have owned. I have been trying to determine with any amount of certainty if theses are indeed original. It seems difficult to find any definitive information,

I did see this on the Yenko.net website when I was researching......
https://www.yenko.net/forum/showthread.php?p=1085882

Left side caliper
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  #25  
Old 09-29-2020, 03:33 PM
NAPA68 NAPA68 is offline
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Right side.......
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  #26  
Old 09-29-2020, 04:10 PM
'ol Pinion head 'ol Pinion head is offline
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NAPA. You're showing:
"377" for a LH
"378" for RH.

Chris, I'll ck the '70 Bird in back of the shop, can now get to the front of it, as moved a partscar & few pallets. Also,mot note, have several organized stackable trays of original '69 & 70-72 A/GP calipers, probably 18-20 calipers total. they are definitely different casting number than any of the early 2nd Gen F-body's & there is definitely two different casting series of the early single piston "A-body" calipers.

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  #27  
Old 10-05-2020, 01:38 PM
FASTASSBIRD FASTASSBIRD is offline
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Quote:
Originally Posted by NAPA68 View Post
Right side.......

I will try and remember to take pics off the pair off the same 71 the evap line came off of. As stated before car is so original it actually still had the stickers on the rear brake drums and all the tower clamps still attached


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