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Mod | | | Forums66 Topics128,187 Posts1,057,325 Members48,469 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Feb 2002 Posts: 2,896 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,896 | 1953 Chevrolet 3100 Series brake lines ---- Hi folks, I am trying to remove the brake lines from this truck, so that I can replace them. I got to the cross member that goes under the cab... there is a brake line there with a 7/16 fitting on it... and it is held on by these two large fasteners, which I think are large clutch heads? I dunno, been awhile since I messed with those. Do they screw out or not? Do any of you know what size it is? I need to get a proper tool to take it off so I can get the brake line off. This is the fastener I am referring to : image of fastener in questionthe folder of brake line photos : album of 1953 Chevrolet 3100 Series - brake line photosThanks folks. -Woog | | | | | Joined: Apr 2005 Posts: 7,441 Bolter | | Bolter Joined: Apr 2005 Posts: 7,441 | Soak for a couple of days with PB Blaster or Kroil then proper size clutch head bit in a hand hammered impact tool will break it loose.ðŸ›
Martin '62 Chevy C-10 Stepside Shortbed (Restomod in progress) '47 Chevy 3100 5 Window (long term project) ‘65 Chevy Biscayne (Emily) ‘39 Dodge Business Coupe (Clarence) “I fought the law and the law won" now I are a retired one! Support those brave men/women who stand the "Thin Blue Line"! Hug a cop! USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Feb 2002 Posts: 2,896 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,896 | Ok, so it does come off... that's good to know. Anyone have an idea of what size clutch head it is? -W | | | | | Joined: May 2015 Posts: 11,177 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,177 | Anyone have an idea of what size clutch head it is? I don't know specifically. I just have the set of 4 clutch head bits that go on a socket set and try each till I find the one that fits correctly. It helps to take a scribe and scratch the accumulated rust/crud out of the recess so the tool fits all the way in.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Feb 2002 Posts: 2,896 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,896 | Ah, I guess I need to find some of those clutch head bits then!
I just want to use the right tool for the job.
This was my dad's project truck and I know he had some clutch head bits... but I dunno where they are yet and I don't know if he had one that would fit this one or not.
Yep, I had to hit it with brake cleaner and my wood handled wire brush to get that photo... it was caked up with muck....
old trucks are fun, right?
-W
Last edited by Woogeroo; 04/29/2018 8:16 PM.
| | | | | Joined: Mar 2010 Posts: 10,310 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,310 | Crawl under the crossmember and actually look at what you are working on. You will see what holds those brake line clips on. I could just tell you what it is, but I don't want to be the "the guy" who took all the fun out of your hobby. (Tip. Bring a 7/16" wrench with you.) Carl
Last edited by 52Carl; 04/29/2018 10:39 PM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Feb 2002 Posts: 2,896 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,896 | Yeah, the fun of not getting it off in the driveway, ok.
hmn.
-Woog | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Just make sure to use a large enough bit, might have to clean well and push bit in hard, too small bit will just strip head.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Feb 2002 Posts: 2,896 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,896 | Hi folks... so I have a set of clutch head drives now that fit my 3/8 drive ratchet, very handy. For anyone that may come in here in the future, there is a square bolt on the inside of the cross member that you will have to hold to get it loose. Now my problem is this, the line in question is the one that runs along the backside of the cross member that goes under the transmission between the frame rails... and it goes into the back of the master cylinder : brake line - back of master cylinderNow, I had my brake line wrench on there and tried the righty-tightey, lefty loosey action, but it didn't budge. Is there a trick to getting it off? I sprayed some pb blaster on there and I will try later but thought I'd come in and ask some other folks for tips and tricks. also, added some more brake line photos to the folder here, same the one linked in the original post : album of 1953 Chevrolet 3100 Series - brake line photosThanks. -Woog | | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | yeah boy, it needs a good soaking for sure. After a good soaking I'd use a box-end wrench on the big nut and a "line wrench" on the smaller fitting to get them loosened. Are you putting on new lines? You'll probably have to as I suspect the little line going into the big nut will round off and you'll have to get nasty with a BIG pair of vice grips.........then again, it may break fairly easy after a good soaking with Kroil.
....as rusted as the little line is the nut may not turn on the rusty line and twist into?
...boy, aren't I full of good news today?! You can do it Woog, or bring it on up to see us and I'll help you. Hot dogs and Pepsi waiting. | | | | | Joined: Mar 2010 Posts: 10,310 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,310 | Cut the line off so you can put a hex head socket on it and remove it with a ratchet. If the brake line doesn't budge, but the cap comes out of master cylinder, all the better. Then you can work on it in a bench vice. Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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