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PostPosted: Wed Aug 05, 2009 12:02 am 
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Year and Trim: 1997 Oldsmobile LS L36 4T60-E
New L36 @ 110K Miles
Hello all,
You may remember my post about a week ago about some components for my brake system overhaul. I have received the parts (new brake lines at all four corners, new rotors and pads up front). A few questions as I wait to tackle the project again tomorrow...

-What size are the front caliper mounting bracket allen heads? I have allen wrenches but they are all way too small.
-What size wrench/socket do I need for the bleeder valves in the calipers and on the wheel cylinders in the back?
-What size for the front brake line bolts that hook up to the hoses?
-Does anybody have any suggestions on how to get the brake line nut to loosen on the hard line side where I am replacing the hoses? I tried heating the junction with a torch and spraying it with PB blaster, but I get to the point where I might strip the nut and have nothing to open the line with. I am going to let it soak with PB blaster overnight and hit it with a crescent wrench tomorrow.

Any advice is greatly appreciated as I can't wait for this to be overwith.


Last edited by Tuffguy610 on Wed Aug 05, 2009 12:03 am, edited 1 time in total.

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PostPosted: Wed Aug 05, 2009 10:24 am 
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Use a line wrench on the fittings. Otherwise you'll round off the fittings, and be in a world of trouble.

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PostPosted: Wed Aug 05, 2009 10:50 am 
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Year and Trim: 1997 Oldsmobile LS L36 4T60-E
New L36 @ 110K Miles
What size line wrench do I need? I used a 9/16 wrench on there and it seemed to fit fine, but I don't want to find out the hard way that I should have bought a metric line wrench.

What about the size of the allen head for the brake caliper bolts?


Last edited by Tuffguy610 on Wed Aug 05, 2009 10:51 am, edited 1 time in total.

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PostPosted: Wed Aug 05, 2009 11:30 am 
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I believe the bleeder screw is 10mm, and the caliper allen head is 3/8".

For the lines, I don't know.

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PostPosted: Wed Aug 05, 2009 11:44 am 
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Joined: Thu Dec 18, 2008 10:56 am
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Year and Trim: 1997 Oldsmobile LS L36 4T60-E
New L36 @ 110K Miles
Thanks. I think its 9/16. I will pick one of those up. I'll use a socket on the bleeder screw just to crack it open. Now I can go to the store and buy the correct tools! Thanks.


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PostPosted: Fri Aug 07, 2009 10:51 am 
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Joined: Thu Dec 18, 2008 10:56 am
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Year and Trim: 1997 Oldsmobile LS L36 4T60-E
New L36 @ 110K Miles
UPDATE:

Thank you all for the bolt sizes. I took the calipers off and found that the sliders on both calipers had seized, causing my inner brake pads to constantly press against the rotor. I had to buy new calipers. I do have one question now that this thing is back together, is there a rear brake adjustment? The drums seem to be coming on stronger than they should. Lets keep in mind I put the car through a rigorous brake bleeding process on all four corners starting with the farthest wheel and working to the closest.


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PostPosted: Fri Aug 07, 2009 1:29 pm 
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Wait, new calipers for the slider pins? If the slider pins seized you can replace just those pins along with new rubber boots for the casting in the caliper. The AutoZone pads I bought came with new rubber boots, and new slide pins were $13 for both sides.

For the drum brakes being stronger, I'd expect that with new fluid and new hoses. Did you replace the hard lines or the rubber hoses?

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