Rear brake lines/wheel cylinders - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Acregger · 01-17-2021, 09:17 AM

Guys, what am I missing here.

So my I put new brake lines on my 71 k10 rear is 1/4. I took the rear shoes and hardware off to paint the backing plates. I ordered new hardware, shoes and cylinders. I have tried 2 different wheel cylinders and they both are for 3/16 brake line. It just so happens I took everything apart before trash night so my old cylinders are gone. I did take photos so I could put everything back correct. trying to figure out which is wrong cylinders or lines? BTW it was a brake line kit.

Thanks everyone

OL SKOOL · 01-17-2021, 10:05 AM

I know on my c10 it's 1/4 to the rear axle then a rubber hose to a tee. The brakes lines coming out of that tee are 3/16 to the wheel cylinders. I would think a k10 should be the same.

OL SKOOL · 01-17-2021, 10:37 AM

Something like this

Acregger · 01-24-2021, 09:00 AM

Got another set of lines coming, hopefully that the problem. Thanks OL Skool

**MikeB** · 01-24-2021, 03:55 PM

Next time you could use these:

https://shop.advanceautoparts.com/p/...chTerm=785-434

01-17-2021, 09:17 AM	#1
Acregger Registered User Join Date: Jul 2020 Location: Pennsylvania Posts: 54	Rear brake lines/wheel cylinders Guys, what am I missing here. So my I put new brake lines on my 71 k10 rear is 1/4. I took the rear shoes and hardware off to paint the backing plates. I ordered new hardware, shoes and cylinders. I have tried 2 different wheel cylinders and they both are for 3/16 brake line. It just so happens I took everything apart before trash night so my old cylinders are gone. I did take photos so I could put everything back correct. trying to figure out which is wrong cylinders or lines? BTW it was a brake line kit. Thanks everyone

01-17-2021, 10:05 AM	#2
OL SKOOL Registered User Join Date: Feb 2010 Location: rochelle il. Posts: 355	Re: Rear brake lines/wheel cylinders I know on my c10 it's 1/4 to the rear axle then a rubber hose to a tee. The brakes lines coming out of that tee are 3/16 to the wheel cylinders. I would think a k10 should be the same.

01-17-2021, 10:37 AM	#3
OL SKOOL Registered User Join Date: Feb 2010 Location: rochelle il. Posts: 355	Re: Rear brake lines/wheel cylinders Something like this Attached Images

01-24-2021, 09:00 AM	#4
Acregger Registered User Join Date: Jul 2020 Location: Pennsylvania Posts: 54	Re: Rear brake lines/wheel cylinders Got another set of lines coming, hopefully that the problem. Thanks OL Skool

01-24-2021, 03:55 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,563	Re: Rear brake lines/wheel cylinders Next time you could use these: https://shop.advanceautoparts.com/p/...chTerm=785-434 __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

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