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1987 Brougham 5.3 Vortec, 4L60E transmission
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334 Posts
Discussion Starter #1
Hi guys
anyone happen to know what is the thread on the front brake line fitting? I mean the one that the hose attaches to.
I need to buy or make a cap to isolate the wheels
I think the thread is 7/16-24 but not sure, also is it double flare?
 

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1977 Coupe (blue), 1977 Coupe (yellow), 1977 Coupe (green)
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1,493 Posts
Yes, double flared. NAPA used to have blind caps for this application. Hard to find, unless the guy behind the desk is close to retirement.
 

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1987 Brougham 5.3 Vortec, 4L60E transmission
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334 Posts
Discussion Starter #3
it seems to be 3/8-24 for a 3/16 hard line. No chance to find caps here in Canada. I'll have to make something with unions, bleeder screws and epoxy.
 

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1977 Coupe (blue), 1977 Coupe (yellow), 1977 Coupe (green)
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1,493 Posts
Yes, a union and the a length of line with a double flare will work. Then, crimp the line on the other side. Emergency measure when brake line fails.
 

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1987 Brougham 5.3 Vortec, 4L60E transmission
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334 Posts
Discussion Starter #5
i bought some unions and tapped them for a 8-32 screrrw then covered it with Permatex tank repair epoxy.
I think for 10-15 minutes it should hold. otherwise will try your method. Thanks for sharing it
 
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