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Re: GM metric rear disc conversion [Re: mopar65] #1313414 09/30/12 11:07 PM 09/30/12 11:07 PM
Joined: Sep 2004 Posts: 1,499 San Antonio,TX 4 440W8 Duster pro stock
440W8 Duster pro stock 4 Joined: Sep 2004 Posts: 1,499 San Antonio,TX	no I sure dont. 70 Duster W8 motor. 1.29 60ft 5.79 1/8 at 120 mph glide with 1.80 gear @3170 lbs.

Re: GM metric rear disc conversion [Re: 440W8 Duster] #1313415 10/01/12 01:09 AM 10/01/12 01:09 AM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	I used 93 jeep Cherokee rotors. You don't need a measurement to place the caliper bracket. Just bolt on the rotors put the pads in the calipers and bolt them to the brackets. Install them over the rotor and it helps if you have someone hold the brake pedal one you have them where you want them, this will square them up to the rotor. Then just tack the brackets on, remove everything and weld them up. Here's some pics from mine. Last edited by R5P7Duster; 10/01/12 05:55 AM. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: GM metric rear disc conversion [Re: DemonDust] #1313416 10/01/12 05:26 AM 10/01/12 05:26 AM
Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan D Dartin super stock
Dartin super stock D Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan	Quote: I used 93 jeep rotors. You don't need a measurement to place the caliper bracket. Just bolt on the rotors put the pads in the calipers and bolt them to the brackets. Install them over the rotor and it helps if you have someone hold the brake pedal one you have them where you want them, this will square them up to the rotor. Then just tack the brackets on, remove everything and weld them up. Here's some pics from mine. I used the front rotors from a 2000 Grand Cherokee, Speedway brackets, Autozone calipers and pads. I drilled the rotors for 5/8" studs, mocked it up on the axle, and put shop air to the calipers to hold them in place while welding. My rear lines are flex lines that were also purchased along with the fittings from Speedway. Randy

Re: GM metric rear disc conversion [Re: DemonDust] #1313417 10/01/12 05:38 PM 10/01/12 05:38 PM
Joined: Sep 2008 Posts: 201 Rome, Ga S sbhpcb enthusiast
sbhpcb enthusiast S Joined: Sep 2008 Posts: 201 Rome, Ga	What about a parking brake?

Re: GM metric rear disc conversion [Re: sbhpcb] #1313418 10/01/12 05:51 PM 10/01/12 05:51 PM
Joined: Sep 2005 Posts: 12,481 Chino Valley RodStRace I Live Here
RodStRace I Live Here Joined: Sep 2005 Posts: 12,481 Chino Valley	no parking brake with these calipers. I'll also mention that a couple tabs for the hoses to clip on are a nice addition while you have the welder out... Make sure you leave enough slack so the caliper can be removed from the rotor for pad replacement.

Re: GM metric rear disc conversion [Re: RodStRace] #1313419 10/01/12 06:22 PM 10/01/12 06:22 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	You put a cable-operated disc brake on the rear end pinion. What I don't understand is why one wouldn't use a rear caliper with a disk brake provision? R.

Re: GM metric rear disc conversion [Re: dogdays] #1313420 10/01/12 06:58 PM 10/01/12 06:58 PM
Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard... mopar65 master
mopar65 master Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard...	thanks for all the ideals guys and how easy they are to set up.I am wanting to do this this way on my car because i don't need a park brake for my street/strip car. but if i was going to use a set up with a park brake. there is a guy over at FABO site that took the complete rear disc break set up off of a jeep. looked pretty easy to do.its is in the brakes section. OK back to the gm disc conversion what did you guys do with the factory proptioning valve? i mean did you leave it be, bypass it or just remove it and add a adjustable one for the rear breaks. I already have a aluminum latter mod brake master cylinder. also the conversion brake line kits on found on ebay and speed way have kits that come with everything. like the little brackets that you weld to the axle, so you can mount the brake line.i think this is a very keep way to have disc breaks for the rear of your car.it will be a couple of weeks before i get all the parts bought and will put up some pics when i get it installed.going to have to hit up the parts store to see if i can fine the brake lines to build me a kit cheaper that what eBay or speedway is wanting.Mopar65 3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops

Re: GM metric rear disc conversion [Re: mopar65] #1313421 10/01/12 08:14 PM 10/01/12 08:14 PM
Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan D Dartin super stock
Dartin super stock D Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan	I also didn't see the need for a parking brake on mine. As for the proportioning valve, I went with an adjustable one. There are a bunch of brands and styles out there in a variety of prices. Check out the ones speedway has while you are ordering up the brackets, lines, fittings, caliper bolts, clips, etc.... saves on shipping too! Randy

Re: GM metric rear disc conversion [Re: Dartin] #1313422 10/01/12 08:50 PM 10/01/12 08:50 PM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	The only thing I got from speedway were the brackets. Everything else i got from Oreilly. Everything from O'Reilly cost less than $115 ( rotors, calipers, pads, hoses, banjo bolt) When you buy the brackets just get the flat ones, I bought the gusseted first and they were a pita. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: GM metric rear disc conversion [Re: DemonDust] #1313423 10/01/12 10:36 PM 10/01/12 10:36 PM
Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard... mopar65 master
mopar65 master Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard...	Quote: The only thing I got from speedway were the brackets. Everything else i got from Oreilly. Everything from O'Reilly cost less than $115 ( rotors, calipers, pads, hoses, banjo bolt) When you buy the brackets just get the flat ones, I bought the gusseted first and they were a pita. thanks that what i plan on doing. i already have all the parts and prices looked up on orielys web site. but on the hoses do you have a part number for them on what year make car etc you found the part number for the hose? also can you show a pic of how you mounted your break lines? thanks Mopar65 3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops

Re: GM metric rear disc conversion [Re: Dartin] #1313424 10/01/12 10:41 PM 10/01/12 10:41 PM
Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard... mopar65 master
mopar65 master Joined: Jan 2004 Posts: 3,840 Central Missouri Fort Leonard...	Quote: I also didn't see the need for a parking brake on mine. As for the proportioning valve, I went with an adjustable one. There are a bunch of brands and styles out there in a variety of prices. Check out the ones speedway has while you are ordering up the brackets, lines, fittings, caliper bolts, clips, etc.... saves on shipping too! Randy thanks for the info. i have used the adjustable one before on my 65 but that was with wildwood brakes front and back. so did you just plug the rear break line coming off the factory valve and run a new line from the master cylinder etc? Mopar65 3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops

Re: GM metric rear disc conversion [Re: mopar65] #1313425 10/01/12 11:21 PM 10/01/12 11:21 PM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	The part number is BH36847. I used a 79 Malibu for my reference. My brake lines are the stock lines that ran to the cylinders, I just shortened them and reflared them so they worked with the flex hoses. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: GM metric rear disc conversion [Re: mopar65] #1313426 10/02/12 05:21 AM 10/02/12 05:21 AM
Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan D Dartin super stock
Dartin super stock D Joined: Aug 2007 Posts: 1,001 Clinton Township, Michigan	Quote: Quote: I also didn't see the need for a parking brake on mine. As for the proportioning valve, I went with an adjustable one. There are a bunch of brands and styles out there in a variety of prices. Check out the ones speedway has while you are ordering up the brackets, lines, fittings, caliper bolts, clips, etc.... saves on shipping too! Randy thanks for the info. i have used the adjustable one before on my 65 but that was with wildwood brakes front and back. so did you just plug the rear break line coming off the factory valve and run a new line from the master cylinder etc? Mopar65 Yep, I plumbed the adjustable prop valve into the rear line coming from the master cylinder. For the lines I used the braided flex lines that Speedway sells. I didn't use banjo bolt type lines. They sell a fitting that adapts a flex line to the banjo thread size (can't remember the size off the top of my head though). Randy

Re: GM metric rear disc conversion [Re: DemonDust] #1313427 10/21/12 04:30 AM 10/21/12 04:30 AM
Joined: Mar 2005 Posts: 867 Bellevue, NE C Charger453 super stock
Charger453 super stock C Joined: Mar 2005 Posts: 867 Bellevue, NE	Has anybody done a weight comparison when swapping from a set of 10" drums? Just curious if this sheds any weight as well.

Re: GM metric rear disc conversion [Re: Charger453] #1313428 10/21/12 02:28 PM 10/21/12 02:28 PM
Joined: Apr 2003 Posts: 13,234 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: Apr 2003 Posts: 13,234 aZLiViN	Funny.... was just looking at Willwoods for the rear this am. can't imagine alot of weight savings... factory calpers are usually not light weight.

Re: GM metric rear disc conversion [Re: J_BODY] #1313429 10/22/12 01:53 AM 10/22/12 01:53 AM
Joined: Jan 2003 Posts: 8,890 poplar bluff mo. T toplescuda I Whine
toplescuda I Whine T Joined: Jan 2003 Posts: 8,890 poplar bluff mo.	I used a caliper for a s10 and a rotor for rear of 92 jeep got bracket from jegs calipers were 10 bucks rotors were 40 pads were 12 bucks for same price on the rotors can get them drilled and sloted off ebay (think was like (70.00) 1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi

Re: GM metric rear disc conversion [Re: mopar65] #1313430 11/04/12 11:26 AM 11/04/12 11:26 AM
Joined: Jul 2006 Posts: 803 Fl. USA PS Arrow super stock
PS Arrow super stock Joined: Jul 2006 Posts: 803 Fl. USA	I have not done the lines yet, but I am under $70.00. 7448164-100_0432.JPG (326 downloads)

Re: GM metric rear disc conversion [Re: 440W8 Duster] #1313431 04/23/13 07:46 PM 04/23/13 07:46 PM
Joined: Jan 2003 Posts: 10,117 MN J JERICOGTX OP I Live Here
JERICOGTX OP I Live Here J Joined: Jan 2003 Posts: 10,117 MN	Quote: Jeff I used rotors from a Jeep Grand Cherokee with GM metric calipers and brakes from any circle track shop for the rear. Sorry to bring up a old post, but Jesse, what is the difference in the brake pads from circle track, compared to a regular set of pads? Jeff

Re: GM metric rear disc conversion [Re: JERICOGTX] #1313432 04/23/13 09:02 PM 04/23/13 09:02 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	That wasn't his point. The lower-cost circle track classes use a "metric GM" caliper. It may even be a requirement in some classes. Anyway, circle track stores should have them and pads out on the shelves so it's easy to just walk in and buy a pair. You don't need to wrestle with the parts guy's computer like you would at Autozone. R.

Re: GM metric rear disc conversion [Re: dogdays] #1313433 04/23/13 09:05 PM 04/23/13 09:05 PM
Joined: Jan 2003 Posts: 10,117 MN J JERICOGTX OP I Live Here
JERICOGTX OP I Live Here J Joined: Jan 2003 Posts: 10,117 MN	Quote: That wasn't his point. The lower-cost circle track classes use a "metric GM" caliper. It may even be a requirement in some classes. Anyway, circle track stores should have them and pads out on the shelves so it's easy to just walk in and buy a pair. You don't need to wrestle with the parts guy's computer like you would at Autozone. R. Jesse, is/was a parts counter guy, that is why I asked. If a simple set from the local parts store is the same for $13 I'll just pick them up, and run a spacer from Speedway. Jeff

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