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  #1  
Old 05-17-2003, 12:37 PM
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dave571 dave571 is offline
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Default rear disc?

I know there were some rear disc cars. I'm pretty sure they were all 9 1/4 diff cars.

Anyone know what years?

Other question? Is there a reasonably priced kit around if the oem stuff can't be found?
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Old 05-17-2003, 04:18 PM
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I can set you up with hats, rotors ,brackets , and wilwood calipers or ugghhh gm calipers for this set up.
I run CnC Motorsports and we are branching out. Just now starting this indeavor. Not only will we race,and build cars,engines etc etc but we will now be offering hp parts. We will carry the whole line of Stock Car Products. I'll post more on this latter when we are better set up.

The cars you are thinking of were Imperals. All cars have 8 1/4 or 8 3/4. I've never seen a 9 1/4 in a car. A 9 3/4 Dana 60 maybe, but the 9 1/4 is a truck axle.

If you want my rear disc kit let me know and I'll get you a price and info. Thanks.
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Old 05-17-2003, 04:26 PM
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What car are you wanting to put this on and what's the application of the car?

I ask, as it really isn't worht it, in most application. 11" rear drums with front discs are normally more than enough stopping power.
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Old 05-17-2003, 05:01 PM
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In reality they will stop in a shorter distance than drum brakes. They have even less wear. Less weight means lower unsprung weight which increases handling. Cheaper and easier replacement of pads instead of shoes, springs, and adjusters that freeze break or just dont work most of the time. So after the initial cost of the swap they are much cheaper and easier to maintain and reapir in the long run.
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Old 05-17-2003, 05:30 PM
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In most applications, the stopping distance is almost the same, when you are running front disc with 11" rear drums. In a properly setup braking system, the front brakes provide 60 - 70 percent of your stopping power. If the rears provide much more stopping power than 30 - 40 percent, they will lock up, as the rear is so light.

In a properly setup braking system, the rear drums should go about 60,000 miles before needing any servicing. If you get the good carbon metallic brakes, you can normally get lifetime replacement on them (free pads when the existing one wear out).

Even in 1/4 mile racing, rear discs won't even save you .05 seconds.

If you spray the adjuster with anti-seize compound, anytime the drums are off, they will not seize. I have never had a problem with them properly adjusting on any of my cars.

In the end, it is personal preference, however, in most applications, there is no need for rear discs.
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Old 05-17-2003, 06:32 PM
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I dont ant to really argue the point but in most apps they do not stop in the same distance. And the rest of my first statement is very ture to the facts. If the front and rear are increased together you get no lock up. Only when they are out of sync so to speak. And the rear disc have less fade under hard use as well due to better cooling and ventilation.

This is why all new Dodge cars and most trucks now come standard with rear disc. They just do a better job. It's also why we install them for our sleves and our customers on all types of race cars. From drags to dirt to oval to road course you cant beat the extra stopping power of a good front and rear disc set up.

By the way I dont need the sale just gave you a cheaper option since I'll offer discounts to MoparChat members. All I want to do is get you as much and correct info as you need to make a good descision.
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  #7  
Old 05-17-2003, 09:26 PM
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Dwc43, I would be interested in a price on your kit, and details of what is involved.

The monaco's ect I'm thinking of were far too new for an 8 3/4.

I'm reasonably sure the 9 1/4 was on these ones. I haven't seen one for a while, and I'm no all knowing guru.

Ed, I agree that they are unnecessary.

My thinking is simply this, I have a 9 1/4 axle to go in the van with 3.21 gears. It is set up for 11" drums right now, but the backing plates are all that is left.

I figured if I could find the factory rear disc setup in a boneyard(since they weren't that great anyway) it would be a nice conversation piece.

dwc43, please email me your info...

dave@davesmopar.com
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Old 05-17-2003, 10:03 PM
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Dave, you like my new avatar?
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  #9  
Old 05-17-2003, 10:14 PM
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Now we're talkin!!
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  #10  
Old 05-17-2003, 10:30 PM
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Dave 571 I'm at work give me a couple hours when I get home I'll shoot you some packages with prices and details. Thanks for asking.
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Old 05-18-2003, 03:53 PM
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Hey Dave I left out some info last night on my e mail. Those are 1.250 rotors in those kits. I can get you .810 's for about the same price. Might be a little cheaper. Both are vented rotors and the hats are aluminum. I can also get lines,pads,fluid,prop valves or just about anything you want for your brake system.

Let me know if you want the rear disc kit I offer. I'll be glad to fix you up.
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