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Old 12-24-2018, 10:38 AM
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Interceptor Interceptor is offline
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Join Date: Oct 2014
Location: Calgary, AB
Posts: 265
Default Are all Brake Master/Boosters Created Equal?

Looking for a replacement for my disc/drum 70 GTO. There are dozens of options on Ebay and elsewhere, 1-wire and 2-wire etc ranging from $115-300. Are they all created equal? I'll spend a little extra for the correct square master but not a fortune, and I'd rather have better-than-original operation than correct-appearing.

https://www.ebay.com/itm/68-72-gm-A-...oYSo:rk:1:pf:0

https://www.ebay.com/itm/Chevelle-Ca...cUT:rk:43:pf:0

What size bore would the original be?

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70 GTO Restomod -- 400/200-4r, nothing to see here
70 Firebird -- 455/400
69 Mach 1 -- 390-C6
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