1969 C10 parking brake
Drove my long bed about 10 miles to get a couple 10' boards . Felt like the parking brake was on . Got home and both rear dog dish hubcaps were hot . It does roll backward okay on a hill , didn't try going forward . Guess I need to pull the drums and see what's going on . Any thoughts ? THANKS !!
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Re: 1969 C10 parking brake
Check the flex hose at the rear axle. It may be holding pressure on the rear brakes.
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Re: 1969 C10 parking brake
That's a good idea , Steve . Doubt it's ever been changed . THANKS !!
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Re: 1969 C10 parking brake
Also, the parking brake "hose" that goes from frame to carry the cable into each brake assembly can seize the inner cable. I've had that happen on 2 different sets of brakes. I think they get rusty and dirty in there and there is no real provision for greasing them.
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Re: 1969 C10 parking brake
Another good thing to check . My grandsons did drive this old truck last and they used the parking brake . I hardly ever use it . THANKS !
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Re: 1969 C10 parking brake
Trying to install this Napa 36542 rear brake hose . Have the ez end at the axle loose . Guess the frame end is about the same ? Hard to see and doesn't help that I'm crawling around under my old truck . Can't find a good video . Any tips ? Thanks !
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Re: 1969 C10 parking brake
soak the snot out of that flare nut with oil, then grip that side tight and immobile while turning the hose end.
Mine was so frozen the flare nut rounded itself off and spun in the line wrench, so the hard line kinked at the 90* bend. |
Re: 1969 C10 parking brake
Yes, that's it. I had some of them so rusted together the hard line ends up getting destroyed trying to take them apart. Fortunately Inline Tube makes replacement lines that fit pretty well.
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Re: 1969 C10 parking brake
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Re: 1969 C10 parking brake
Got this flex hose off , but did put a big kink in the hard line too . Have one ordered . Hope it's not destroyed when it gets here . If this doesn't do the trick how do I free up the parking brake cable ? Maybe lots of Kroil ? THANKS guys !!
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Re: 1969 C10 parking brake
If you do end up cracking those drums open, open them both up and work on one side at a time so you can go look at the other one when you need to remember how it goes together.
I learned this from Junkyard Digs |
Re: 1969 C10 parking brake
Thanks , I usually take pics also . Did manage to loosen the brake line close to the firewall without breaking anything . Now I wait for the front to rear hard brake line . Thanks , again !
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Re: 1969 C10 parking brake
While you're waiting I recommend remove the parking brake cable/conduit assembly on each side, it is something you can get at the auto parts store if the inner cable doesn't move freely. If you proceed with care you can remove the nail brake shoe retainer and disassemble just enough of the brakes to get the lever out to where you can disengage it from the cable, but it takes finesse and luck so take pictures and plan on the whole brake system falling apart and it'll be a good exercise putting it back together with all those springs and levers. Use a small hose clamp to disengage the fingers that hold the conduit in place. https://67-72chevytrucks.com/vboard/...d.php?t=841288
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Re: 1969 C10 parking brake
More good advice and pics too ! Parking brake cable might be the problem . THANKS !
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Re: 1969 C10 parking brake
Anyone know how to loosen the brake hard line clamps close to the axle ? The others just pried down . These last 2 attach to a hole in the frame . Trying not to break anything else . Thanks !
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Re: 1969 C10 parking brake
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https://www.youtube.com/watch?v=kbqzkx9izmE |
Re: 1969 C10 parking brake
The ones on my 69 frame appeared to me to have part of the metal bent into a U that sticks through the hole in the frame, and they whacked it with a hammer to smash it and make it stay in the hole. I tried prying the U back into shape with a small punch or nail and shaped it with needle nose pliers and was successful. But those type clamps are probably just meant for using one time.
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Re: 1969 C10 parking brake
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https://www.summitracing.com/parts/opg-g200021 I mangled most of them and just used Adel clamps instead. |
Re: 1969 C10 parking brake
THANKS guys , those lower ones in the pic look about right . Mine do look like one time use also , I'll see if I can knock them out and maybe re-use . Should've said these are the last 2 on the frame . I have also watched that video a couple times . Thanks again !
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Re: 1969 C10 parking brake
Used a hammer and small chisel on the outside . Couple whacks and then squeezed it together with vice grips . Fell right out . Thanks !
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Re: 1969 C10 parking brake
Seems the parking brake cable is the problem . Got the rear wheel spinning after hitting and releasing the foot pedal a few times . Checked my book and I replaced the right side in 2002 . Think it was broken ? Oh well , this flex hose needed replacing anyway . While I'm waiting on the hard line I pulled the dif cover . I'm sure it could use some fresh gear oil . What's the best way to refill the rear end ? Been a long time since I've done that . THANKS !!
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Re: 1969 C10 parking brake
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I have a hand pump that fits in the rectangle plastic bottles gear oil also comes in Old hack for the cylinder shape bottles was to use a piece of hose, about 6" stuffed onto the tapered end of those bottles. IMHO the hand pump version is the most mess free but the new bag ones seem to also work. |
Re: 1969 C10 parking brake
Good info , didn't know they made squeeze bags . THANKS !!
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Re: 1969 C10 parking brake
Got everything back together and most of my tools picked up . Kinda made a mess but put about a quart and a half in the diff . Soon as I get some brake fluid I'll bleed the line and go for a test drive . Broke the tab off the 2 brake line clips that poked thru the frame and used a bolt instead . Should be ok .Thanks for the help !
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Re: 1969 C10 parking brake
That doesn't sound like very much to fill up a differential, did you fill it up to the fill plug?
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Re: 1969 C10 parking brake
Checked gear oil level with an allen wrench and it was close to the fill plug hole . Had the pass side jacked up higher than the drivers side so I could get to the front to rear hard brake line I messed up . I'll recheck now that it's level . How much should it hold ? THANKS !!
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Re: 1969 C10 parking brake
I don't know how many quarts but I think it's more than 1.5, so I was a little surprised when I saw your post, but it could be I just don't remember. With truck level fill it up to where it is dribbling out of the fill hole. I use the 1 qt tall bottles with the spout and plastic stopper and it is pretty much mess-free.
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Re: 1969 C10 parking brake
Bought another quart at NAPA today . Asked about the squeeze bags . They'd never heard of them . I'm hoping mine is full enough that I can top it off with a small oil can pump . Might not have been full but I drained a little over a quart out . I'll make sure it's full before the test drive .THANKS !!
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Re: 1969 C10 parking brake
Test drive today went well . Figure my diff held about 2 quarts . THANKS for the help guys
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