Breaks Lock up, Any ideas - Page 3 - Pontiac GTO Forum
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post #21 of 25 (permalink) Old 03-20-2019, 05:22 PM
 
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I will also add, because I did not see this, have your brake drums turned. First it will ensure they are perfectly round, and second that they are within spec and not worn out.

My personal opinion & experience here - use an inexpensive brake shoe. Don't go with a lifetime shoe. Why? The lower grade brake lining seems to always be a little softer material and will grab much better, especially with drums. The higher grade/lifetime brake shoes are a much harder material and often listed as "metallic." These do not grab as well in normal driving and need heat, like a really hard stop or heavy application, to work well. They will also eat up your drums a lot quicker than the softer brake shoes.

Check the rubber brake hose that goes from the frame to the rear axle. Look at the top of the rear end cover and you should see it. It will have a brass block that the wheel cylinder brake lines connect to. It is about in the middle of the frame/rear end and easy enough to see.

Also, if the car has been sitting for 10 years, my bet is that your rubber gas line hoses at the fuel tank and carb are not ethanol friendly and will quickly deteriorate, rot, or crack & split which can create a bunch of problems in itself. The needle/seat in the carb may also be of a rubber not compatible with ethanol gas and will also go bad in time. So keep this in mind and on your list of things to replace unless you know they have already been changed out.
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post #22 of 25 (permalink) Old 03-21-2019, 05:27 AM
 
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Heres a link to the '67 SM Brake section;
http://thefirstgensite.com/library/67service/PO67S5.pdf

GTO Jr. - A.K.A. SPRINT 6
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post #23 of 25 (permalink) Old 03-23-2019, 12:28 PM Thread Starter
 
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Thanks for all the help, I finally got the drums off with a puller, it was like a bad dream. The wheel cylinders were like something I have never seen before. Not even rebuildable !! On another note I notice that the 2 hold down springs for the shoes are not the same. One is a little bit longer than the other. Could someone advise which one goes where ??

Thanks for all the help, Deano
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post #24 of 25 (permalink) Old 03-23-2019, 12:30 PM Thread Starter
 
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Heres a link to the '67 SM Brake section;
http://thefirstgensite.com/library/67service/PO67S5.pdf
Thank You
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post #25 of 25 (permalink) Old 03-26-2019, 08:51 PM Thread Starter
 
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Thanks for everyone's help, but after EXTENSIVE RESEARCH the big shoe goes in the REAR
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  Pontiac GTO Forum > The 2004-2006 GTO > Drive train, suspension, alignment and brakes.

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