Disc Brake Hoses sizes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Eagar1 · 09-20-2009, 04:17 PM

I got a pair of front disk brake hoses from Txfirefighter, they bolted up to the 72 C20 calipers just fine, but when I went to connect the brake lines I discovered they were different fitting sizes. One looks to be 3/16ths and the other is 1/4? The larger one has a longer/deeper thread bore as well.
Will this create a pressure variable? Or can I just use a downsize adapter? (altho I am not to thrilled about doing that).
What you all think?

**Captainfab** · 09-21-2009, 12:35 AM

Can you tell if the ID of the hose with the 1/4" flare fitting is the same as the one with the 3/16" fitting? Ordinarily you want your braking to be balanced from side to side. If the ID of the hoses is the same, you should be OK. If not......don't know if it will make a difference or not.

Eagar1 · 09-21-2009, 03:26 AM

The hose says 1/8 on both of them, that sound right? I will get an adapter and make it work for now. If it shows to be a problem, its not too tuff to change out the hose. Thanks for your input.

**Captainfab** · 09-22-2009, 12:58 AM

Yeah that sounds about right. Hopefully the fitting size is the only difference.

09-20-2009, 04:17 PM	#1
Eagar1 Registered User Join Date: Sep 2006 Location: Las Vegas, NV Posts: 169	Disc Brake Hoses sizes I got a pair of front disk brake hoses from Txfirefighter, they bolted up to the 72 C20 calipers just fine, but when I went to connect the brake lines I discovered they were different fitting sizes. One looks to be 3/16ths and the other is 1/4? The larger one has a longer/deeper thread bore as well. Will this create a pressure variable? Or can I just use a downsize adapter? (altho I am not to thrilled about doing that). What you all think?

09-21-2009, 12:35 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Disc Brake Hoses sizes Can you tell if the ID of the hose with the 1/4" flare fitting is the same as the one with the 3/16" fitting? Ordinarily you want your braking to be balanced from side to side. If the ID of the hoses is the same, you should be OK. If not......don't know if it will make a difference or not. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-21-2009, 03:26 AM	#3
Eagar1 Registered User Join Date: Sep 2006 Location: Las Vegas, NV Posts: 169	Re: Disc Brake Hoses sizes The hose says 1/8 on both of them, that sound right? I will get an adapter and make it work for now. If it shows to be a problem, its not too tuff to change out the hose. Thanks for your input.

09-22-2009, 12:58 AM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Disc Brake Hoses sizes Yeah that sounds about right. Hopefully the fitting size is the only difference. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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