D30 disc set up on the rear? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 08-19-2004, 03:09 PM Thread Starter
 
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D30 disc set up on the rear?

I want to upgrade my brakes. Thinking about going to the WJ knuckles and brakes up front for the dual piston stuff.
I want to put disc on the back too, but there's not an application for it (2WD Toyota) that I like (Caddy calipers suck).
So since I just replaced the front calipers I'm thinking about moving them and the rotors to the back. Mock it up, make a cardboard template, and cut some 1/4" brackets out to weld to the axle. I won't have an e-brake but that's not an issue for me, I'll put in a line lock later if I feel the need for some kind of holding brake.
If that's still not giving me the braking power that I'm looking for I'll look in to adding a hydro boost system.


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post #2 of (permalink) Old 08-19-2004, 04:36 PM
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Re: D30 disc set up on the rear?

</font><blockquote><font class="small">In reply to:</font><hr />
If that's still not giving me the braking power that I'm looking for I'll look in to adding a hydro boost system.

[/ QUOTE ]

ONE MORE TIME - DISCS WILL NOT GIVE YOU MORE BRAKING POWER!!!!!!

Disc have their advantages shedding water better, won't fade from heat, don't have the problems locking up that drums do easier to replace pads. But, if you're looking for more braking power, stay with the drums. As light as the rear of a Jeep is, it doesn't need much braking power back there. Too much and you'll just lock up the tires and slide, resulting in a longer stopping distance.
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post #3 of (permalink) Old 08-19-2004, 04:40 PM Thread Starter
 
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Re: D30 disc set up on the rear?

I guess you missed the part where I'm putting bigger brakes on the thing.
You don't really expect anyone to think that the stock brakes are just as good with stock tires or 35"+ tires do you? [img]images/graemlins/wink.gif[/img]
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post #4 of (permalink) Old 08-19-2004, 11:40 PM
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Re: D30 disc set up on the rear?

WJ's have disk in the rear too, don't they?
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post #5 of (permalink) Old 08-20-2004, 10:57 AM Thread Starter
 
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Re: D30 disc set up on the rear?

Yes, WJ's have rear disc with a seperate e-brake like the Exlorer set up.
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post #6 of (permalink) Old 08-20-2004, 06:15 PM
 
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Re: D30 disc set up on the rear?

Not sure how big of tires you are running, but with stock brakes and 33x12.5 tires I can easily lock up all four on pavement after adding in a better brake booster. And that's without making like I'm doing a leg press of 500lbs. Prior to that, I could barely make em squeal with ridiculour full leg effort. I used a Chevy S10 dual diaphragm booster and that did the trick. There's been a few guys convert to rear discs and gain little or nothing but headaches. I believe the stock system doesn't generate enough braking pressure. If the problem was brake fade because you were racing, mountain driving or towing, then I'd say you need more brakes, but without those problems, you might want to consider swapping to a more powerfull brake booster instead. Unless of course there is some other reason, like water crossings affecting your drums.
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