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Re: Four Wheel Disc Brakes-Is it worth It?? [Re: chargervert] #2263822
03/05/17 05:36 PM
03/05/17 05:36 PM
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Supercuda Offline
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Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Really? Gee, I thought the cure for front drums was rear discs rolleyes

I would hope you would be smart enough not to put rear discs on a front drum car, but I am beginning to wonder.

Bit of advice, find yourself in a hole quit digging.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: SIKPUP] #2263825
03/05/17 05:41 PM
03/05/17 05:41 PM
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Originally Posted By SIKPUP
[quote=Spaceman Spiff]
sure drums stop fine.... as long as everyone around you has them too.


Your forgetting the fact that properly sized and maintained drums actually work better.
Because they self energize.
It's repeated use or poor maintenance that is the difference.

Discs. need little to no maintenance per se and are cheaper to build.
This is why they are so prevalent today.

Is it worth the trouble or the expense?
Well that is a matter of opinion.
This thread has shown you what opinions are good for. grin


I have mechanical Aptitude.
I can screw up anything.
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: chargervert] #2263827
03/05/17 05:44 PM
03/05/17 05:44 PM
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Grand Prairie,Texas
stumpy Offline
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Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Too many other factors to blame it on not having rear disc brakes. This was what the OP was wondering.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: jcc] #2263830
03/05/17 05:47 PM
03/05/17 05:47 PM
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chargervert Offline
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I clearly stated atleast five times they are better,just saying!


70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: stumpy] #2263832
03/05/17 05:49 PM
03/05/17 05:49 PM
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chargervert Offline
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Originally Posted By stumpy
Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Too many other factors to blame it on not having rear disc brakes. This was what the OP was wondering.


I said there was significant improvement in the stopping distance and the straightness in which the 71 Charger R/T braked after the SSBC rear disc brake kit was installed and adjusted.


70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: Supercuda] #2263837
03/05/17 05:57 PM
03/05/17 05:57 PM
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chargervert Offline
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Originally Posted By Supercuda
Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Really? Gee, I thought the cure for front drums was rear discs rolleyes

I would hope you would be smart enough not to put rear discs on a front drum car, but I am beginning to wonder.

Bit of advice, find yourself in a hole quit digging.


I stated that I saw with my own eyes,and personally experienced that two Chargers with disc brakes in front and drum brakes in the rear did not brake straight,and did not stop in a short enough distance. In the case of my own car,the rear brakes appeared to lock up about the same time,and left approximately the same amount of rubber on the road. The question by the OP was are rear disc brakes a good upgrade and are they worth it. I was stating that the Chargers were not four wheel drum brake equipped cars,I'm sorry if I really have to break that down for you!


70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: jcc] #2263844
03/05/17 06:02 PM
03/05/17 06:02 PM
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DuPont, Washington
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DZJim Offline
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Originally Posted By jcc
Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Were they both red, because that will make them pull to the right. eek

Seriously,typical thread with opinions, or a tinge of https://en.wikipedia.org/wiki/Cognitive_bias grin

To repeat, the OP asked "Is it worth It?" Not "are they better?"

I rest my case. drive



"...worth it..." Hmmm...depnds on what you mean "worth"? "Worth" used as a noun? or adjective? or preposition? or even an intransitive verb? (archaic, you can rule the last one out).

Worth to whom? Me? No. I don't race on the street or track, and I don't speed or follow too close or engage in other forms of reckless driving. If a bus full of nuns pulls out in front of me without warning, best I can do is steer to miss 'em or hit the least bad obstacle, or probably just stand on the brakes. In my (drum brakes) cars, that will lock 'em up. What more could I do?

Posts like this are fun, cuz bring out all kinds anecdotes, conjectures, opinions, ridicules, "bad mouthing" and spirited discussion of all kinds.

For me to give the OP an opinion re his question, I'd have to know why he's even considering the modification and his financial circumstance. Basically, what is he buying and how much can he afford to pay.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: DZJim] #2263847
03/05/17 06:08 PM
03/05/17 06:08 PM
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jcc Offline
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Originally Posted By DZJim
Originally Posted By jcc
Originally Posted By chargervert
Both Chargers that didn't stop straight had disc brakes on the front.


Were they both red, because that will make them pull to the right. eek

Seriously,typical thread with opinions, or a tinge of https://en.wikipedia.org/wiki/Cognitive_bias grin

To repeat, the OP asked "Is it worth It?" Not "are they better?"

I rest my case. drive



"...worth it..." Hmmm...depnds on what you mean "worth"? "Worth" used as a noun? or adjective? or preposition? or even an intransitive verb? (archaic, you can rule the last one out).

Worth to whom? Me? No. I don't race on the street or track, and I don't speed or follow too close or engage in other forms of reckless driving. If a bus full of nuns pulls out in front of me without warning, best I can do is steer to miss 'em or hit the least bad obstacle, or probably just stand on the brakes. In my (drum brakes) cars, that will lock 'em up. What more could I do?

Posts like this are fun, cuz bring out all kinds anecdotes, conjectures, opinions, ridicules, "bad mouthing" and spirited discussion of all kinds.

For me to give the OP an opinion re his question, I'd have to know why he's even considering the modification and his financial circumstance. Basically, what is he buying and how much can he afford to pay.


or just review the second post of this thread.


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: DZJim] #2263848
03/05/17 06:09 PM
03/05/17 06:09 PM
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RI Deep in the rust belt
chargervert Offline
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For me it cost a lot more money to put a nose on a 70 Charger R/T than it does to buy a disc brake up grade kit. Just go watch some of the original roadtests of these cars that Bud Linderman did on Road and Track. I saw one on a 71 383 4 speed Challenger that the car went completely sideways under hard braking just like my friends Charger did.

Last edited by chargervert; 03/05/17 06:10 PM.

70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2263956
03/05/17 09:31 PM
03/05/17 09:31 PM
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KY
65pacecar Offline OP
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Interesting conversion and good opinions for and against. Since the car I am building still has the original drum brakes, shoes (whats left of them) hardware etc everything will need to be replaced either way. I plan to drive this car a lot, and live around roads fun for spirited driving. I think since I have to spend a lot of money either way I will try rear disc on this car and keep the drums on the other one (all new system with NOS shoes, drums, hardware etc. (Plus I have several boxes of NOS shoes to support that car for a couple of centuries, plus another set of NOS drums)). I really dont mind the expense of the rear set-up, its a drop in the bucket compared to the rest of the build, I just didn't want to waste the time if no advantage is gained or even worse perforance (junky aftermarket systems etc). I appreciate the pros and cons on both sides, lots of great information on this site.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: chargervert] #2263993
03/05/17 10:30 PM
03/05/17 10:30 PM
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Downtown Roebuck Ont
Twostick Offline
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Originally Posted By chargervert
For me it cost a lot more money to put a nose on a 70 Charger R/T than it does to buy a disc brake up grade kit. Just go watch some of the original roadtests of these cars that Bud Linderman did on Road and Track. I saw one on a 71 383 4 speed Challenger that the car went completely sideways under hard braking just like my friends Charger did.


Quote:
I was on my way to a Mopar show,and a friend of mine was following me to the show in his 71 Charger R/T. Some dope pulled right out in front of me and I had to lock up my brakes. I heard my friend lock up his brakes,and looked in my side mirror hoping he wouldn't hit me. Instead of him hitting me,his car was completely sideways in the road. After that incident he installed a rear disc brake kit from SSBC,and the car stopped straight and in a lot shorter distance than it did before.


The reason the cars went sideways is because the rear wheels locked up. That is because they had too much rear brake.

The rear disc kits solve your problem by either being less powerful or they use a proportioning valve to adjust bias.

Kevin

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2263994
03/05/17 10:33 PM
03/05/17 10:33 PM
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Cotati, CA
Dave Hall Offline
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There's really just two things you need to consider. Unless you go with a racing Wilwood type setup, which may or may not come with an e-brake setup, the factory drums are lighter than the factory type discs. The racing discs are rather small to fit inside a standard 15" wheel. If this car has huge tires on the back you might consider an adjustable proportioning valve to dial it in correctly.
1. Is un-sprung weight a priority?
2. Do you want to keep the e-brake setup?

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2263995
03/05/17 10:33 PM
03/05/17 10:33 PM
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Nashville, Tennessee
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Drums are an over complicated POS means of engineering (by comparison) to discs any day of the week. I'm not getting in to a debate on cost vs manufacturing on these dinosaurs. The fact is, if drums were more efficient, NASCAR, NHRA, F1, SCCA on and on etc. would run drum brakes. They do not and have not for many years.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2264000
03/05/17 10:35 PM
03/05/17 10:35 PM
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Cotati, CA
Dave Hall Offline
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What about big trucks??? Some bada$$ drums right there!

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2264018
03/05/17 11:02 PM
03/05/17 11:02 PM
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Akron, Ohio
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Heck I think 4 wheel disc is worth it just because I hate working on drum brakes. grin

I've never owned rear disc brakes, not even on my 9 second cars, but I sure do want them for my Duster.


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2264084
03/06/17 12:31 AM
03/06/17 12:31 AM
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Cotati, CA
Dave Hall Offline
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If you re buying brakes for your drag car I highly recommend Lamb.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: Dave Hall] #2264088
03/06/17 12:41 AM
03/06/17 12:41 AM
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The good rear disc brake kits have working emergency brakes.


70 Charger R/T SE 472 Hemi 70 Charger R/T convertible 70 Charger R/T V Code Sixpack 69 Charger R/T SE Sunroofcar 68 Charger 383 68 Charger 318 71 Charger R/T 70 Challenger convertible 71 Challenger convertible 71 Cuda 340 09 Challenger R/T Classic
Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2264113
03/06/17 01:27 AM
03/06/17 01:27 AM
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KY
65pacecar Offline OP
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Who makes the best kits for Mopars.

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: 65pacecar] #2264187
03/06/17 07:53 AM
03/06/17 07:53 AM
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Originally Posted By 65pacecar
Who makes the best kits for Mopars.






Do you want to retain the factory axle adjustment, or go with Green Style bearings and eliminate the adjustment?

DrDiff IIRC has the only kit on the market that retains the factory adjuster, utilizes Cobra components

I personally have used several rear SSBC rear disc set up on 8 3/4 and DANA 60 axles, 15" rims are the minimum for clearance, you retain a parking brake, Green Bearings are required, utilizes Cobra components

either kit will work depending on what you desire, just be sure to research or ask questions to avoid any pitfalls when installing any mfg's kit

Re: Four Wheel Disc Brakes-Is it worth It?? [Re: DAYCLONA] #2264228
03/06/17 12:16 PM
03/06/17 12:16 PM
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65pacecar Offline OP
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Originally Posted By DAYCLONA
Originally Posted By 65pacecar
Who makes the best kits for Mopars.






Do you want to retain the factory axle adjustment, or go with Green Style bearings and eliminate the adjustment?

DrDiff IIRC has the only kit on the market that retains the factory adjuster, utilizes Cobra components

I personally have used several rear SSBC rear disc set up on 8 3/4 and DANA 60 axles, 15" rims are the minimum for clearance, you retain a parking brake, Green Bearings are required, utilizes Cobra components

either kit will work depending on what you desire, just be sure to research or ask questions to avoid any pitfalls when installing any mfg's kit


Thanks. I already have the Green Bearings for the car and plan to install them when I remove and restore the rear end. I plan to run 15" wheels on the car too. If the SSBC has a good system I will consider it, the front I installed from them appears to be nice quality, easy assembly.

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