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Author Topic: Brake line sizes in Calipers two different sizes?  (Read 4022 times)

dannystarr

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Brake line sizes in Calipers two different sizes?
« on: October 19, 2015, 03:56:41 PM »
I went to install my original calipers last night and the left side caliper line is larger. The line I got with the repro calipers fell inside of it. Is that correct factory? Before I sent them back to White Post, I center punched small marks on them, so I would know I received mine back. The marks are there, what's the deal?... The right side is smaller and fits the original caliper...Danny
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z28z11

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Re: Brake line sizes in Calipers two different sizes?
« Reply #1 on: October 19, 2015, 04:27:30 PM »
Correct - LH and RH, different fittings/tubes on the originals. I think the reproductions have the same size lines as you know.
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1968 Z28 M21/U17 BRG/W 1967 Chevy ll Nova SS 
1969 Z28 X77/M20/VE3 LeMans/W
1969 L78 X66/N66 Cortez/BVT
1969 Z11 L48/M35/C60/C06  1949 3100 5wd 235/6

dannystarr

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Re: Brake line sizes in Calipers two different sizes?
« Reply #2 on: October 19, 2015, 04:33:51 PM »
I guess I forgot about that. Better try to find my original lines and see if I can make them work. Why wouldn't the repro guys be smart enough to ALSO make the left line match? So can use your original lines?... Oh well, thanx... D
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x77-69z28

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Re: Brake line sizes in Calipers two different sizes?
« Reply #3 on: October 20, 2015, 06:56:18 PM »
Lone star in Texas sells the correct size lines. Great people to deal with.
Buddy
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69 Z/28 X77 burnished brown, 711 int 05A bought in 78
70 Z28 forrest green, green int, M40, bk vinyl roof PROJECT
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Mike S

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Re: Brake line sizes in Calipers two different sizes?
« Reply #4 on: October 20, 2015, 11:51:55 PM »
Danny,
  What year car is this on?

Mike
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67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

Mike S

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Re: Brake line sizes in Calipers two different sizes?
« Reply #5 on: October 24, 2015, 01:36:11 AM »
 I learned Danny's car is a '68 which got me looking at my calipers from my 67 05B NOR convertible that is undergoing restoration. Those calipers were rebuilt in the mid-80's and I see the same size fitting used on each caliper. Both caliper halves are 5455530(fitting side) and 5455533. Upon looking at the AIM, J52/A1 I see the pipe P/N listed with a revision record associated with it dated 2/17/67 where the pipe was superseded with a different number. I believe John Z. or William stated those dates don't necessarily mean when the change was put into production. I'm wondering if that is the reason why mine use the same size fitting. Perhaps due to production mix ups it was easier to have different sizes? I'd check my 04B LOS survivor but it is completely wrapped in plastic at the moment while I paint the convertible. I also remember reading that there were two sizes used in '67 (reproduction not withstanding) but I can not find that article. Anyone else with an early to mid 67 with 4 piston brakes?
  Just when I think I know everything about my own car, I learn something new here at CRG.

Mike
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67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored
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