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skj283 · 03-16-2010, 08:44 PM

i just went through all this. a late 70's early 80's pickup is 1 1/8 bore, mid 80's diplomat is 1 1/16, and mid 80's daytona is 24 mm which is under an inch. BUT i put one on my car and dont like it and am gonna go to the diplomat. also most of the new mastercylinders are cast iron replacements but the rebuilds which are like 15 bucks are aluminum. hope it helps.

03-16-2010, 08:44 PM	#17
skj283 Junior Member Join Date: Nov 2009 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Aluminum master cylinder? i just went through all this. a late 70's early 80's pickup is 1 1/8 bore, mid 80's diplomat is 1 1/16, and mid 80's daytona is 24 mm which is under an inch. BUT i put one on my car and dont like it and am gonna go to the diplomat. also most of the new mastercylinders are cast iron replacements but the rebuilds which are like 15 bucks are aluminum. hope it helps.