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Opinion- Disc or restore drum brakes?
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   Forward Look Technical Discussions -> Brakes, Wheels and TiresMessage format
 
57chizler
Posted 2020-02-20 2:53 PM (#594576 - in reply to #594388)
Subject: Re: Opinion- Disc or restore drum brakes?



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58Jackie - 2020-02-16 6:30 PM

Can i use my existing rear axle, reuseing just the housing of it, and put in a new center section, and new flange axles to replace those horrible tapered ones?


The original taper axle bearing presses on the axle shaft from the outside, therefore there is no bearing retaining collar. The flange axle bearing presses onto the shaft from the inside and uses a retaining collar, therefore the bore in the housing end needs to be deeper so the collar will clear the inner seal.

Because the taper axle uses no collar, the bore at the end of the axle housing is more shallow and factory flange axle bearing collar will interfere with the inner seal. The only way to make a flange axle work in an early housing is to use the Green bearing with a modified retainer and eliminate the inner seal. The Green bearing is a ball bearing as opposed to the factory Timken roller bearing.

Some dislike the Green bearing.

Edited by 57chizler 2020-02-20 2:54 PM
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NC Adventurer
Posted 2020-02-20 6:43 PM (#594591 - in reply to #572441)
Subject: Re: Opinion- Disc or restore drum brakes?


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sonaramic300 - 2018-10-26 10:05 PM

Locked wheels stop well? What are you people thinking. Since the mid1980's we have had antilock brakes, they never lock or SKID and the car stops much quicker.


Antilock brakes are not about stopping in shorter distances. They were introduced to enhance the control people unaccustomed to skidding experienced.

Ever notice the disclaimers on commercials that says "Professional driver, professional course" and "Don't try this in your car?" Experienced - professionals - understand how to power in and out of a skid, they understand how to maneuver using the power, weight distribution and basic physics to make a vehicle do what they want it to do, not what it wants to do. The average driver doesn't take the time to learn their own vehicle or its responses to emergency actions. Like everything else in life, things have to be "dumbed down" to protect people from themselves and their environment.
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58Jackie
Posted 2020-02-20 7:20 PM (#594594 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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I guess it may be easier now to replace the entire rear end. Found this. Mopar 8 3/4. Not cheap, no, but all new, disc brakes, and custom length and pinion offsets which is great to make it work in my car. Now, to answer some of your guys questions to why I'm doing this, i researched what a big pain these tapered axles are... the hub/drum are a one piece unit, have to use a special puller to get it off, and i havent found any disc brake setups that bolt in for the rear either.
Heres that new rear...
https://www.moserengineering.com/stamped-housing-mopar-8-3-4-musclep...
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Powerflite
Posted 2020-02-20 8:05 PM (#594597 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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The special puller will cost you $100 used, and works great if you get the right one made by Snap-on or Blue Point. After that it is a piece of cake. Most of the trouble that people have is from using a sub-standard puller. We already told you that AAJ makes the disc brake kit for your original rear. But paying $3700+shipping, and you don't even get brakes with it, sounds like a lot more pain than I would be willing to tolerate. It's not like you are building an 800hp drag car. are you? The best approach to a new style rear is to find a C-body or B-body rear in your local craigslist or wrecking yard. As far as the gears, I have purchased numerous used gear sets from swap meets - like 40 to 50 of them and have never rebuilt any of them or ever had any issues with them. Save your money for things that matter, not for things that don't. Otherwise a fool and his money are soon parted.
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58Jackie
Posted 2020-02-20 9:14 PM (#594604 - in reply to #594597)
Subject: Re: Opinion- Disc or restore drum brakes?



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So would a c or b body mopar rear be the same width dimensions, or do i need to do fab work? What year c/b body?
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Powerflite
Posted 2020-02-20 11:23 PM (#594606 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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The '65-'69 C body rear is just slightly wider than stock, but is a direct bolt in. No changes at all except the brake hose mount is a little further inboard on the new axle. So you can move it or use a longer brake hose. The B-body axle is a little narrower than stock and may make it easier to fit wider tires under the car without custom backspace wheels. However, the perches have to be moved & welded on it because they are different than your original positions. Use a '68-'70 B body rear as it is a little wider than the earlier ones.
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mikes2nd
Posted 2020-02-21 1:33 AM (#594609 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?


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ive never seen a c body axle for sale....
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58Jackie
Posted 2020-02-21 7:14 PM (#594642 - in reply to #594609)
Subject: Re: Opinion- Disc or restore drum brakes?



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Location: Southern Idaho, USA
mikes2nd - 2020-02-21 12:33 AM

ive never seen a c body axle for sale....


My point, to why i found the aftermarket custom one. True, its pricey, but.....
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Powerflite
Posted 2020-02-21 7:56 PM (#594645 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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I would sell you one for half that price! You could even get an entire C-body car for that price. You just have to look around for them and for parts cars.
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1960fury
Posted 2020-02-22 5:55 AM (#594662 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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IIRC one FL-member posted, that there is no non-FL axle that has the spring perches in the same location (width) as the 57-61 units. If you think 1/8" does not count, this is like saying a 1/8" change in toe in at the front does not matter. The rear axle steers just like the front axle. Keep the OE axles, it is better and period correct.
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58Jackie
Posted 2020-02-29 2:02 PM (#594991 - in reply to #570036)
Subject: Re: Opinion- Disc or restore drum brakes?



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Location: Southern Idaho, USA
Just need to know this now, what is the correct length, and pinion angle? Thanks.
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