Need 4x4 front brake hose Part Number
 

Purchased what O'Reillys said. No good. The wheel cylinder end is wrong size. I may have to change the plumbing from orig to get a hose that has a 3/8-24 male end for the cylinder. Any help appreciated.

Re: Need 4x4 front brake hose Part Number
 

Found that the 3/4T wheel cylinder inlet is 7/16-20 which matches the hose. Will try to use those. The mounting pattern is different for the 3/4T cylinder and the bore is 1 1/8" instead of 1". Will see if it physically fits, if so will drill backing plate to accommodate mounting unless someone chimes in and tells me I'm crazy.

Re: Need 4x4 front brake hose Part Number
 

OK , I know I'm talking to myself here, but to close this issue, I drilled and tapped the wheel cylinders to accept the hose.

Re: Need 4x4 front brake hose Part Number
 

Azken, I looked up the part number as 3773168.

Re: Need 4x4 front brake hose Part Number
 

Thank you Funky. From what I can find online re that number, that hose won't work for me. I was hoping there was a hose that would fit right on. The correct length hose with the correct frame end, but incorrect wheel cylinder end, is BrakeBest BH34466 @ O'Reilly. The correct wheel cylinder is WC14205 / WC14206. The inlet on the wheel cylinder is 3/8-24 but the hose end is 7/16-20. Fortunately it is SAE and the 3/8-24 can be drilled out (13/32) and retapped with a normal tap, to 7/16-20. Notice the "frame" end of the hose has male AND female threads. This is necessary for the original fitting/retainer/banjo to work, both front hoses are the same. This is for the front of 1960 K1000. This truck, being "first year", has some one or two year only ideas, the parts stores don't know anything about GMC and I found these parts by searching 1960 Chevrolet K10. All is good now. Maybe someday someone will find this thread and it will help them sort it out.

Re: Need 4x4 front brake hose Part Number
 

Attachment 4248

Attachment 4249

Attachment 4250

Attachment 4251

Attachment 4252Here are some pics of the semi finished brake plumbing, The fitting going into the front wheel cylinder is where the problem was.

Re: Need 4x4 front brake hose Part Number
 

Pictures missing

Re: Need 4x4 front brake hose Part Number
 

Rebooted. OK now?

Re: Need 4x4 front brake hose Part Number
 

Yes Sir!

Re: Need 4x4 front brake hose Part Number
 

Looks Great AZken! Are the hard lines from a kit (Inline Tube etc)?

Re: Need 4x4 front brake hose Part Number
 

Two green rears are Pre flared lines (I bent) from O'reillys, all the rest is bulk tubing I fabbed. (copied most of the old lines). Gotta do the fuel line next, then the UJoints (6), drop motor in to test Xfer/trans etc. Was a semi basket case when I got it so never run/driven. Then on to the body and wire and ...... restore some plaid covers among many other things.
So far, besides the plumbing and issues, rebuilt entire rear D44 differential.and wheel brgs. Rebuilt the front hubs with trunion brgs, wheel brgs, knuckle seals. Shoes, cylinders, springs, hoses, seals and brake hardware all around. Painting the frame as I clean and degrease. Fabbed upper front shock mounts, finding parts, refurbished/serviced motor (305D, 305A was toast) and trans and painted both. Rebuilt carb and starter and breather. New pumps and Ignition parts. New clutch, brgs, master cylinder and slave. In between all the honey-do's and honey-don't's. Thanks to everyone here and Barry for help.

Re: Need 4x4 front brake hose Part Number
 

I searched far and wide for the correct wheel cylinder adapter for my 1962 GMC K1000 Suburban. Never found any, but I did find a solution and a quick easy way to make them from an existing and available fitting. This is two threads about it I posted on the 47-66 Chevy truck forum.

I went to Tompkins Industries, a hydraulic hose supplier today, and showed them a sample 1962 GMC K1000 front brake hose fitting and they said they had 729 of them at their Olathe store. I drove across Kansas City to get them and thought I was in luck, but the male part of the fitting was 1/8" NPT pipe thread instead of straight 3/8"-24. The counter guy looked through all types of catalogs to find one, and was looking at ways to use two fittings to adapt it. I didn't want two fittings.

I bought two of the fittings with the male 1/8" NPT and was thinking I'd drill and tap the male end and thread in a section of a 3/8"-24 bolt and silver solder it in. Then I figured out if I removed the threads on the fitting, it would still be thicker than the major diameter of 3/8"-24 threads: .3667. So I will file off the threads on the male portion while spinning in a drill press, and try to run a die down it. I don't have a lathe.

The fitting part number is 6404-04-02. It has correct 7/16"-20 threads on the female end.

My plan to file down the 1/8" NPT steel fitting down to .3667, and thread to 7/16"-20 worked perfect. I cut the head off a 7/16"-20 bolt to screw into the fitting and chucked the non threaded bolt shank into the drill chuck. Laid my small drill press on its side to do the filing, then stood it up and spun it by hand in the die and stock laid on the drill press table.

Some have solved the problem by tapping the wheel cylinder to 7/16"-20 and using no adapter, but I wanted to keep the original setup with the adapter. Nobody cares about this unless you still have drum brakes on a 1960-1963 or so GMC K1000 or K10, but I have seen several discussions in the past seeking this fitting.

Re: Need 4x4 front brake hose Part Number
 

I made an error in my previous post: "My plan to file down the 1/8" NPT steel fitting down to .3667, and thread to 7/16"-20 worked perfect." I should have said: and thread to 3/8"-24.