9 and 10 inch wheel cylinders

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Brian Arcella

Brian Arcella

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Joined
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New Jersey
I am in the process of renewing the brake system on my son's 69 Dart GT whihc has 9 inch drums so I figured I would upgrade to stainless steel brake hoses but can't find any for 9" drums plenty for 10". So I have to ask are there different tube thread sizes for 9" and 10' wheel cylinders? It doesn't make much sense that the powers that be at Chrysler design would have 2 different line sizes, logically speaking one size line is more cost effect for production purposes heck you don't need to upgrade to a larger size line when you upgrade to disc brakes and good luck getting an answer from the local auto parts store.

Thanks in advance
 
Just go to a shop and have them made .I did that and it didn't cost any more that the rubber crap in the end.Did it on all my motorcycles with juice brakes too and even my ratty 1971 Chevy C20 Do it once and forget about them use rubber and every 3 or 4 years you can start to wonder when they will fail. This is the place I use in LI NY and I'm sure there are places where you are just like this
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Ask any guy who drivers a big truck . These places are all over the place.Heavy equipment all need this service ,snow plows back hoes farm equipment
 
Brian Arcella said:
I am in the process of renewing the brake system on my son's 69 Dart GT whihc has 9 inch drums so I figured I would upgrade to stainless steel brake hoses but can't find any for 9" drums plenty for 10". So I have to ask are there different tube thread sizes for 9" and 10' wheel cylinders? It doesn't make much sense that the powers that be at Chrysler design would have 2 different line sizes, logically speaking one size line is more cost effect for production purposes heck you don't need to upgrade to a larger size line when you upgrade to disc brakes and good luck getting an answer from the local auto parts store.

Thanks in advance
Click to expand...
Both are the same size.
 
valiantwagonguy said:
Just go to a shop and have them made .I did that and it didn't cost any more that the rubber crap in the end.Did it on all my motorcycles with juice brakes too and even my ratty 1971 Chevy C20 Do it once and forget about them use rubber and every 3 or 4 years you can start to wonder when they will fail. This is the place I use in LI NY and I'm sure there are places where you are just like this
Home
Click to expand...
Good place to go. I’ve been to the Oakdale shop with my son in law.
 
From the factory, 9", 10", and disc all have different front brake hoses. IIRC, the hose threads into the wheel cylinder on the 10", but, not the 9". I think the 9" hose attaches to a bracket and has a short hard line that goes into the wheel cylinder. Please correct me if I'm wrong!
 
I do think your right. I have 9 inch drums all around on my Duster and IIRC, your correct.
 
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