Speed Bleeder Blunder
04-05-2006, 07:57 PM
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Speed Bleeder Blunder
Well, I got my Speed Bleeders in the other day, so tonight I change the front pads, bleed out the front system using the Speed Bleeders, which worked great. Now I go to install the rears so I can bleed the whole system from back to front and the SQUID BRAIN that I'am forgot I had installed the chevy 1 ton rear break cylinders HELLO!!!
needless to say they are the wrong size.
. Yes there was colorful language coming out from under the old Dodge tonight, glad the goats (kids) were in the House 
Hope this helps someone from make the same mistake 
needless to say they are the wrong size.
. Yes there was colorful language coming out from under the old Dodge tonight, glad the goats (kids) were in the House Hope this helps someone from make the same mistake
Are you smok'in crack? 
Poor truck probably goes 
every time you touch the brake.
04-05-2006, 08:43 PM
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Here is the explanation infidel gave as to why the GMC cylinders are an improvement. There is also a link in the quote to a thread with some more info.
~Rob
Originally Posted by infidel
Before you spend big bucks try replacing the rear wheel cylinders with GMC 1 ton cylinders (Napa #4637337) first and see if your impression of stopping power changes. I guarantee it will. For $12 each and an hour of your time it's one of the best modifications going. Don't tell the Napa guys what the part is or what it's going on or you will confuse them. Just a part number is enough. You can even order online by clicking here
The mod is described in more detail here-
https://www.dieseltruckresource.com/...threadid=43854
Switching from a 27mm to a 30mm cylinder increases applied force area from 572.55mm^2 to 706.85mm^2. That's over a 23% increase.
On a '94 with 24mm cylinders it's over 50% increase
Also make sure your rears are correctly adjusted by doing it manually. Dodge drum brake self adjusters are notorious for not working.
The mod is described in more detail here-
https://www.dieseltruckresource.com/...threadid=43854
Switching from a 27mm to a 30mm cylinder increases applied force area from 572.55mm^2 to 706.85mm^2. That's over a 23% increase.
On a '94 with 24mm cylinders it's over 50% increase
Also make sure your rears are correctly adjusted by doing it manually. Dodge drum brake self adjusters are notorious for not working.
04-05-2006, 08:55 PM
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Nowthat we know I'm only 1\2 nuts what would be the correct part no from speed bleeders Thought I might get lucky, but it's not part no. SB8125L. Any Idea's??
04-05-2006, 09:02 PM
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I just put the Dodge one ton wheel cylinders and shoes on my 93. When they turn the drums you just have them run the cut to within about 1/4 inch of the shoulder. Now you have the wide shoes, the one ton wheel cylinders and it's all Dodge. No change in bleeder size from 3/4 to 1 ton. If that matters?
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04-05-2006, 09:34 PM
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Originally Posted by Totallyrad
I just put the Dodge one ton wheel cylinders and shoes on my 93. When they turn the drums you just have them run the cut to within about 1/4 inch of the shoulder. Now you have the wide shoes, the one ton wheel cylinders and it's all Dodge. No change in bleeder size from 3/4 to 1 ton. If that matters?
04-05-2006, 09:43 PM
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I didn't feel the need to go any larger than that. With the way the rear anti-locks work on my 93, it feels like a bus hit you in the butt when they engage. It'll scare you to a pucker of about 10.5.
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