The Stovebolt.com Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Big Thanks!

Big THANKS to

MONGO
for hosting
the weekend event.



Read all about it.


Stovebolt Site Search
'
Oh Lord, I just gotta find it....

A pdf guide to help you search the Site


Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!


Who's Online Now
14 members (3B, 3100Cummins, Cletus1950, DES57, buoymaker, 1 invisible), 144 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums60
Topics125,016
Posts1,008,976
Members45,125
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
‘52 3100 Front Brake Hoses
#1417421 Mon Jul 19 2021 10:27 PM
Joined: Feb 2019
Posts: 2,133
P
Phak1 Online OP
AD Addict
I am having an issue with the drum brakes pulling to the left on a hard stop. I’m trying to replace the front hoses and am having difficulty in getting the correct hoses. I went to my local NAPA dealer and was given NAPA part # UP 4900. The end that screws into the wheel cylinder is correct but the inlet side that the brake line screws into, is too big. My brake lines are 3/16” with 3/16” male inverter flare (3/8”-24). The NAPA hose is 7/16” female inverted flare 7/16”-20). The old hose has a 3/16” female inverted flare (3/8”-24).

I checked out retail stores and several online venders and they seem to match the same specifications as NAPA. The only vender that I found that had a sufficient description and had the correct hoses was Classic Parts. others like Chevys of the Fortys and LMC Truck may be correct, but there was no discription.I may have to order them, but I have a NYS inspection scheduled for Thursday and wanted to correct the issue.

I’m taking the old hose in to NAPA tomorrow to see if they can match one up, but I was hoping some other ‘bolter found what I am experiencing and can give me the correct part number.

P.S. Autozone and Advance Auto didn’t even have listings for any ‘52 Chevy parts.

Last edited by Phak1; Mon Jul 19 2021 10:28 PM.

Phil

1952 Chevrolet 3100
Project Journals
Stovebolt Gallery

‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417428 Tue Jul 20 2021 12:18 AM
Joined: May 2015
Posts: 4,302
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
I bought AC Delco 18J3815 hoses from RockAuto, but they have the same brake line end threads as what you're finding. It wasn't an issue for me as I was building new brake lines, so just used the matching fitting. I can't be sure because they're gone now, but I believe the original hoses were the same. Do you have enough brake line that you could cut the flare off and get the larger thread fitting?


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417433 Tue Jul 20 2021 01:13 AM
Joined: May 2005
Posts: 8,377
B
Sir Searchalot
Phil, the Classic Parts of America hose 71-307 should be correct. says: One end 7/16"-24 and other end 3/8"-24. Total length is 18".

They have a 71-305 that Napa could have given you. It's tricky, but you can see it misses 1952 1/2T.
"Fits 36-50 1/2 ton front & rear, 36-54 3/4 & 1 Ton Front and Rear and 55-59 3/4 & 1 Ton Rear. Both ends 7/16"-24. Total length is 16 1/2"

Always a good idea to buy from vendors who specialize in our trucks. Napa programmer/buyer missed this application gap.

The one Kevin mentions at Rockauto may have worked but it's application is not for 3100 front and the threads don't match what you say. Go with 71-307.


Watch out for careful drivers!!!
I'm away on an ego trip. Will be back on Feb 30.
I'm not an Auto Mechanic, but I play one on TV.
I charge $0.02 for every opinion and I take Paypal.
Plan B is always better than plan A, by definition.
I used to think beer was bad for me, so I gave up thinking.
Sometimes no nonsense makes sense, in a sense.
You can't teach a new dog old tricks.
Honk if you're Amish


Re: ‘52 3100 Front Brake Hoses
Phak1 #1417471 Tue Jul 20 2021 01:15 PM
Joined: Feb 2019
Posts: 2,133
P
Phak1 Online OP
AD Addict
Kevin, that end has a reverse bend approximately 135°, very close to the fitting, so I can’t put on a new fitting. I may be able to find an reducing adaptor to work in the meantime. I’m headed to NAPA to see what they can do for me.

Thanks bartamos for confirming my suspicions. I strongly suspect, the solution will be to order the ones from Classic Parts.


Phil

1952 Chevrolet 3100
Project Journals
Stovebolt Gallery

‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417503 Tue Jul 20 2021 05:54 PM
Joined: May 2015
Posts: 4,302
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
My understanding was that all three hoses for the 3100 were the same, which is why I did that. I'm pretty sure I saw that somewhere. They seem to fit fine.

Phil, I haven't seen an adapter that would go from reverse flare to reverse flare. But they might exist. A short section of tubing might do the trick, although it would be hanging out there and may flex too much.

Good luck.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417530 Tue Jul 20 2021 07:56 PM
Joined: May 2005
Posts: 8,377
B
Sir Searchalot
You are correct Kevin. The same hose fits the two fronts and the one rear. 71-307 or equivalent.


Watch out for careful drivers!!!
I'm away on an ego trip. Will be back on Feb 30.
I'm not an Auto Mechanic, but I play one on TV.
I charge $0.02 for every opinion and I take Paypal.
Plan B is always better than plan A, by definition.
I used to think beer was bad for me, so I gave up thinking.
Sometimes no nonsense makes sense, in a sense.
You can't teach a new dog old tricks.
Honk if you're Amish


Re: ‘52 3100 Front Brake Hoses
Phak1 #1417553 Tue Jul 20 2021 10:03 PM
Joined: Jun 2004
Posts: 8,436
W
'Bolter
I have an old Napa catalog with pictures & sizes. It looks like part # 11146 matches the fittings & is 17 7/8 long. Part #,s 5784 & 36801 have the same fittings & are 16 in. long.

George


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.

1972 Chevy c10 Cheyenne Super
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417561 Tue Jul 20 2021 10:33 PM
Joined: Feb 2019
Posts: 2,133
P
Phak1 Online OP
AD Addict
I’m not going to take any chances jury rigging the hoses. There is too much riding on it working properly. I ordered three new ones from Classic Parts. In the meantime, I’m installing the old ones but I’ll swap the drivers for the passengers side, to see if that is the culprit.

I did go to NAPA today and they were no help. Thanks Kevin and bartamos for your advice!

Last edited by Phak1; Tue Jul 20 2021 10:34 PM.

Phil

1952 Chevrolet 3100
Project Journals
Stovebolt Gallery

‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: ‘52 3100 Front Brake Hoses
Phak1 #1417569 Tue Jul 20 2021 11:56 PM
Joined: May 2015
Posts: 4,302
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Yeah, don't cut corners with brakes.
NAPA being no help is no surprise. When I needed a single brake line for the MC to first division block, their website had a ton of different choices, but none of them gave the length. Kind of a critical piece of information. There's only one guy at our NAPA that knows what he's doing.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: ‘52 3100 Front Brake Hoses
Wrenchbender Ret. #1417667 Wed Jul 21 2021 11:14 PM
Joined: Feb 2019
Posts: 2,133
P
Phak1 Online OP
AD Addict
Originally Posted by Wrenchbender Ret.
I have an old Napa catalog with pictures & sizes. It looks like part # 11146 matches the fittings & is 17 7/8 long. Part #,s 5784 & 36801 have the same fittings & are 16 in. long.

George

When I was at NAPA, we looked at that hose. The end that goes into the wheel cylinder was too small. The thread size on the the original wheel cylinder is 7/16”-20. I’ve posted the specs on part 11146.

Thanks for looking for me anyway!

Attached Files
Last edited by Phak1; Wed Jul 21 2021 11:29 PM.

Phil

1952 Chevrolet 3100
Project Journals
Stovebolt Gallery

‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Page 1 of 2 1 2

Moderated by  SWEET 

Link Copied to Clipboard
Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.4