Author Topic: Disc brake conversion hardware question/poll  (Read 6122 times)

Offline cudazappa

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Re: Disc brake conversion hardware question/poll
« Reply #15 on: January 19, 2008 - 03:33:45 PM »
i voted viper calipers on 11.75 discs.  Just cool to have the calipers say viper underneath your rims.

but i just did a quick ebay search for calipers, and saw the dodge SRT 10 and Charger/Magnum calipers.  The SRT8s come with brembo calipers.  Another source?
1971 Challenger - AutoX project
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Offline gkring

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Re: Disc brake conversion hardware question/poll
« Reply #16 on: January 19, 2008 - 10:37:52 PM »
Bill Reilley of Alterkation had a post about the SRT brakes. Something about the thickness of the rotor not being standard.
http://www.reillymotorsports.com/forum/index.php?topic=66.0
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Offline HP2

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Re: Disc brake conversion hardware question/poll
« Reply #17 on: January 19, 2008 - 11:21:56 PM »
I saw the Scarebird bracket that mounts to the rear axle flange for mounting calipers? Brackets are $130/pr shipped.  Do you have any details on this or other info on rear-only alternatives?
 

That is probably the most economical kit out there. A number of guys run his stuff. I've only ever heard good feedback, but have no personal experience with any of them.

Offline miketyler

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Re: Disc brake conversion hardware question/poll
« Reply #18 on: January 20, 2008 - 08:41:09 AM »
what about the other parts? Did they lose their e-brake setup? I looked all over the scarebird site and only see instructions for their kit that converts front drum to disc on Ebods. They make mention of their rear conversion brackets being featured in Mopar Performance magazine but I cant find it. Would'nt it be slick if there was a junkyard solution to convert the rears to discs on our cars??  I only found a blurb from the moparstyle forum where a guy used a weld on bracket and was able to use Lincoln MKVII rear calipers with 96 cherokee front rotors to convert his 8 3/4 to disc. 

http://www.moparstyle.net/forums/showthread.php?t=82246

Ok, I'll shut up now.  :1zhelp:
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Offline 426HEMI

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Re: Disc brake conversion hardware question/poll
« Reply #19 on: January 20, 2008 - 10:14:21 AM »
I seem to remember the front conversion also on the scarebird site.  I will have to look again. 
Got a pretty good start on my M46 optioned Barracuda restoration but now it is on hold till I can gather more funds.  Still need a few parts for it.  SIU Graduate 75 AAS Automotive Tech, 94 BS Advanced Tech Studies, 1997 MSED Workforce Education and Development

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Offline HP2

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Re: Disc brake conversion hardware question/poll
« Reply #20 on: January 20, 2008 - 11:10:51 AM »
Browse around moparts and look for posts from the guy named Dr. Diff. Email him and talk to him directly about the necessary parts. Their web site leaves a lot to be desired and there are a number of parts/kits that they don't have advertised that they offer.

I've also heard of people adapting Ford Explorer rear disc kits to 8.75 rear as well, but I don't know if there is a kit for it.

Offline Hopalong

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Re: Disc brake conversion hardware question/poll
« Reply #21 on: January 21, 2008 - 10:07:13 PM »
This is a sorta economical kit, but has the weld on caliper brackets.  You would also have to swap out the E-brake cables.
http://www.speedwaymotors.com/p/1999,351_Speedway-Rear-Disc-Brake-Kit-with-Emergency-Brake.html?itemNo=rear%20disc%20brakes
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Offline Hopalong

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Re: Disc brake conversion hardware question/poll
« Reply #22 on: January 21, 2008 - 10:10:01 PM »
They also have an econo front kit but I think they are the small rotors.
http://www.speedwaymotors.com/p/3793,961_Mopar-Disc-Brake-Kit.html
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Offline HP2

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Re: Disc brake conversion hardware question/poll
« Reply #23 on: February 01, 2008 - 10:40:05 PM »
This has been dead a while so here is some new info. I'm a week out from my biggest swap meet of the year, so I said heck with it and put together three disc kits that I'm taking with me. This isn't a classified since I'm not selling this via the internet. Feel free to critique however, as if you were on site and inspecting the offer. Here are the specs;
 
Stock, original equipment, 11.75 rotor set up. Includes disc spindles, rotors, all bearings and seals, caliper brackets, calipers, pads, and related hardware. Weighs in at a healthy 90 pounds, 45 per wheel and I'm selling it at $400.

Wilwood kit with 11.75 rotors, disc spindles, all bearings and seals, adapter brackets, pads, and hardware. Weighs in at 70 pounds, 35 per wheel, and will list at $700.

Viper kit with 11.75 rotors, drum spindles, all bearings and seals, adapter brackets, pads, and hardware. Weighs in at 76 pounds, 38 per wheel, lists for $800.   

Obviously the spindles, stock brackets, and Viper calipers are used. Rotors, bearings, seals, dust caps, adapter brackets, and Wilwood calipers are new. Stock calipers are rebuilt. I plan on selling kits less brake lines and master cylinder since these can vary between applications quite a bit and I can't afford to take enough inventory with me of those two parts to cover all possible car combos.   

Some interesting things regarding weights using my wholly unscientific, probably worn out,  bathroom scale checks. Wilwood calipers are 3#, Vipers are 5#, stockers are 10#. The caliper adapters, Wilwood 1.5#, Viper 3#, stockers 3#. My unit isn't accurate enough to really differentiate spindle weights so they all appear to be 5#, but I'm pretty sure drum spindles are lighter than disc spindles and I know the taller FJM spindles are lighter than the older ABE spindles.

I'm somewhat suprised the Wilwoods aren't lighter, because they sure look like feather weights in hand. Maybe it is because the Viper calipers are freaking HUGE by comparison. Looking at them all side by side it is quite a sight.

FYI for everyone who voted for vette calipers or mustang units; Cost for a kit for these would probably be midrange in price between stock and Wilwoods. You can get a pair of calipers for around $150, but no one is making the brackets yet. Kore3  brakes in Australia is working on a kit through. Odds are the bracket kit would be in the $150-200 range, comparable to Wilwood or Viper kits, which means a whole 11.75 conversion kit using vette calipers would be about $150 less than Wilwoods, and be slightly heavier than Vipers.

If I was putting these on my own car, I'd have to side with late model mopar stuff. The Viper units are just impressive and the staggered piston size will create nice, even clamping force while the sealed pistons will ensure long life. The black calipers create a nice, understated look to the casual onlooker, but the more attentive viewer is treated to a large white VIPER logo across the side to warn them about the potential stopping capability sitting by their feet. However, some future plans for my car may eliminate the possibility of using these for a few more years. Maybe by then I'll have been able to finish up my drop spindles too.

Next up I'll have to work on creating some venting ducts that can bolt to the stock spindles. I still believe a well vented 11.75 with 15" wheels will brake as long and as hard as a 13" rotor with 17" wheels, albeit with a little more leg force involved.



Offline IMNCARN82

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Re: Disc brake conversion hardware question/poll
« Reply #24 on: February 02, 2008 - 09:10:44 AM »
I didn't see an option for 17" wheels (13")Rotors.  With all the larger wheel sizes being the rage,And needing larger rotors to fill in those wheels.I'm suprized there wasn't an option. Personaly 1300 bucks for sweet new front discs is nothing. They are SO important. I havn't purchased brakes yet.But soon.I hadn't seen this thread till now.I mean,Brakes save your life everyday.I don't put "prices" on things like that.It's just my mentality,coming from racing DH bikes,Where my life depends on them.   I really like the "kit" offerings. Keeps it simple. I guess all around I like the Baer stuff. Not much of it here. I didn't know you sold stuff HP2.  Hmmmm.
'73 340 5 speed,RMS,BAER,... "Supercuda" (O[   ]||||[   ]O)  
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13' Challenger R/T BlacktoP  6spd. (OO________OO)
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Offline Super Blue 72

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Re: Disc brake conversion hardware question/poll
« Reply #25 on: February 02, 2008 - 10:41:48 AM »
Great info, HP2!  Thanks!  Nice comparison!  :2thumbs:
1972 Dodge Challenger Rallye 340, AT, Code TB3=Super Blue, SBD=8/17/1971.  Yes, a Rallye without the fender louvers from the factory because of the body side molding option.

Pic #2 and 3 of my ARII 1/24 scale model car 

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Offline HP2

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Re: Disc brake conversion hardware question/poll
« Reply #26 on: February 02, 2008 - 12:04:31 PM »
I didn't see an option for 17" wheels (13")Rotors.  With all the larger wheel sizes being the rage,And needing larger rotors to fill in those wheels.I'm suprized there wasn't an option. Personaly 1300 bucks for sweet new front discs is nothing. They are SO important. I havn't purchased brakes yet.But soon.I hadn't seen this thread till now.I mean,Brakes save your life everyday.I don't put "prices" on things like that.It's just my mentality,coming from racing DH bikes,Where my life depends on them.   I really like the "kit" offerings. Keeps it simple. I guess all around I like the Baer stuff. Not much of it here. I didn't know you sold stuff HP2.  Hmmmm.


There are an increasing number of 13" options out there. ARE offers a very nice 13" rotor kit utilizing special rotors and the Viper calipers. Never priced them out, but I'd bet they are in the $1300 range. The entry level  Baer stuff is actually rebadged vette parts, but they are very decent parts. Of course there are options from SSBC, Just Suspension, Wilwood, and all the mustang 2 based stuff. I've also heard of a company in Australia who is working on some mopar kits with later model C5 and C6 vette parts, Kore3 Brakes.

The mopar market is kinda funky as there is an increased movement towards bigger brakes, better suspensions and modern tire sizes, but there is still a huge percentage of owners that are either drag racers or stock, restomod enthusiasts who either want everything to look stock or only buy engine and driveline parts.

I used to sell a lot of stuff. From 01 to 04 it is how I supported my car habit while I was back in school. Since getting back in a full time job, I've really backed off of parts sales and only do it a few times a year at swap meets. I usually hit the Tri-state at the Western National complex, Mopars @ Thunder Mtn, and occasionally Maurers Western shootout @ PMI.  Tri-state is the 9-10 of Feb this year. If you not busy working on the car,its a great way to get out of the house in the winter, even if mopar parts selections are slim. If you do, swing by and say hi. I'm on the downstairs concourse between the car corral and restrooms. I always have a mopar performance banner up at my table.


Great info, HP2!  Thanks!  Nice comparison!  :2thumbs:


Hey, my pleasure. I've always seen stuff like this around, but never say any side by side comparisons, so I always figured others might like to know. I sure wish I was in a position to install all this stuff on my car, try it for a period of time, then swap it out and report on results. Maybe in the future I can do stuff like that.  That was my whole intention with my Challenger from the start, but things don't always work out as nicely as we'd like some times. But stay tuned. I'll try. I've also intended to do a variety of skid pad tests on suspension set ups with variety of springs, t-bars and s-bars creating an analysis from worn out stock to all out race set ups.

Offline Super Blue 72

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Re: Disc brake conversion hardware question/poll
« Reply #27 on: February 02, 2008 - 12:33:23 PM »

Hey, my pleasure. I've always seen stuff like this around, but never say any side by side comparisons, so I always figured others might like to know. I sure wish I was in a position to install all this stuff on my car, try it for a period of time, then swap it out and report on results. Maybe in the future I can do stuff like that.  That was my whole intention with my Challenger from the start, but things don't always work out as nicely as we'd like some times. But stay tuned. I'll try. I've also intended to do a variety of skid pad tests on suspension set ups with variety of springs, t-bars and s-bars creating an analysis from worn out stock to all out race set ups.

Maybe you should try to find a job at a place like XV Motorsports or something of the like?   That would be a cool job, take someones elses cash and build something that you want, and flog the daylights out of it to test it not worrying about if you have to put more $$$ into it if you break it!

Reminds me of when I was 17 and the manager of the parts store I worked for said for me to take the bare engine on display, go to the hi performance isle, and pick what ever you want to build up and dress up the engine.  That was my best day there!  :grinyes:
1972 Dodge Challenger Rallye 340, AT, Code TB3=Super Blue, SBD=8/17/1971.  Yes, a Rallye without the fender louvers from the factory because of the body side molding option.

Pic #2 and 3 of my ARII 1/24 scale model car 

Phil in New England-Massachusetts  Always thank God for what you have!

http://www.cardomain.com/ride/456046/1972-dodge-challenger

Offline IMNCARN82

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Re: Disc brake conversion hardware question/poll
« Reply #28 on: February 02, 2008 - 09:47:54 PM »
I'll be assembling the 340 that weekend.Too bad I'd love to go,Mayby Sunday :dunno:   Great info. here HP2. Still got me thinking. I still have alittle time,but not much,To decide on brakes. When that RMS order comes in,the brakes will be on the top of my list.   What about master cylinders?  What do I need to run four wheel disc Baers? Lines?      I can see the demand for the factory looking upgrades. With 15" wheels.  Hopefully talk with you down at the western complex. Robert.
'73 340 5 speed,RMS,BAER,... "Supercuda" (O[   ]||||[   ]O)  
'69 Dodge Charger 383,Auto                  (OiiiiiiiiiiIiiiiiiiiiiO)
13' Challenger R/T BlacktoP  6spd. (OO________OO)
71' Demon
75' Duster
87' Conquest TSI
56' Plaza
Boulder CO
Robert    "cuda bob"

Offline Bullitt-

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Re: Disc brake conversion hardware question/poll
« Reply #29 on: February 02, 2008 - 10:17:10 PM »
I guess this is a good a time & place to ask this as this thread has me thinking again (that's always a dangerous thing)... The 11.75 Rotor will go on the later model e-Body & a-body spindles. Correct?. And these spindles fit any e-body. Correct?  So all that would be needed to upgrade to the larger rotor & better calipers would be an adapter. Correct?...Sooooo what would be wrong with fabricating an adapter (especially for non OE calipers) out of say 1/4" steel or 3/8" aluminum plate?  Some of the adapters I see being sold separately or as part of a kit seem to be nothing more. If my a$$umptions are on target the caliper options would be wide open.
    What am I missing?
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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