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Rear Brakes |
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T Fahey 
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Joined: 12-September-2011 Location: Cumming, GA Status: Offline Points: 8 |
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 Topic: Rear BrakesPosted: 14-October-2011 at 6:57AM |
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I asked this before and nobody answered, so I'm trying again. Does anyone know how to go about installing rear disc brakes on a 1968 / 1969 Torino. Front already has front discs.
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Tim Fahey
(678) 296-0850 1968 1/2 Torino R Code fastback |
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ilyes
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Joined: 09-January-2010 Location: Philadelphia PA Status: Offline Points: 3782 |
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Posted: 14-October-2011 at 7:07AM |
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hey, welcome to the forum, you should drop a line in the presentation section to tell us about you and your ride.
About your brake situation, you can fabricate a set of bracket to attach to the rear axle, and mount calipers/rotors. I don't know if you can get a conversion kit, or last choice would be to swap your entire axle for one with disc brake already, you just need to take measurement and find something along the lines. I'd be looking at fox bodies and crown vic for a start
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VorbottenO
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Joined: 22-March-2008 Location: Atlanta Status: Offline Points: 375 |
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Posted: 14-October-2011 at 7:24AM |
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Several companies are offering kits to convert Ford Drum rear to disk brakes.
MP is one of them: http://www.mpbrakes.com/products/list.cfm?make=Ford&model=Torino&year=1969
Do keep in mind you will have to go to 15" or larger wheels for clearance.
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Eric
72GTS-Ncode (429-477ci) |
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T Fahey
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Joined: 12-September-2011 Location: Cumming, GA Status: Offline Points: 8 |
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Posted: 31-January-2012 at 7:52AM |
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Thanks everyone for the suggestions. I ended up purchasing a conversion kit instead. What I need now is the correct master cylinder to drive both front and rear disc brakes. I have a power setup. Please advise.
What I'm doing a full restoration on is a rare car. It is a 1968 1/2 Torino GT Fastback 428 R code. According to the Fairlane/Torino registry, there were 35 Fastback 428 R codes made. I'm questioning this but I also haven't seen any. I have the correct CJ engine, trans and rear axle. The car has been entirely media blasted ans expoxy primered and is on a rotissorie. I'm replacing the floor boards and cutting them in without any overlap so it is a 'clean' replacement. |
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Tim Fahey
(678) 296-0850 1968 1/2 Torino R Code fastback |
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Psquare75
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Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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Posted: 31-January-2012 at 8:27AM |
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If this were a later car I'd say easy, use a Mark V MC. but I have no idea what the bolt pattern is like on an earlier car. Sorry.
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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jedclampit
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Posted: 15-August-2012 at 6:02AM |
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I think the # from the registry indicates the # that are registered there, the production #'s are way more than that I'm pretty sure of.
Why are you changing the rear brakes? I think that will hurt the collector value and showmanship of a restored car. You must plan on driving it hard!  |
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Tom
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Joined: 16-September-2011 Location: Sarasota, FL Status: Offline Points: 2 |
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Posted: 24-October-2012 at 6:47AM |
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I have installed rear disc brakes on my 1967 (same for 1968) Ranchero from a 1990 to 2000 Crown Vic/Towncar using adapters (4 steel spacers from Fast Merc on Ebay). Its easy, cheap, readily available and ALL Ford. I have lots of pictures. If still interested send email to tbndb98@verizon.net
I have no connection with Fast Merc (just the purchase of parts)
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franck
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Joined: 01-July-2015 Location: LA Status: Offline Points: 3 |
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Posted: 13-July-2015 at 6:48PM |
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great i'm interested and i got toronado front 9"disc on my 68 torino but they're too weak,what do you recomend?
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Tom
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Posted: 14-July-2015 at 12:45AM |
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franc,
I have installed '76 Granada spindles with disc brakes on my '67 Ranchero. This is a popular front disc brake conversion used successfully by many. I am using a 2000 V6 Mustang MC, without ABS, for my 4 wheel disc brake conversion. Refer to Mustang Steve for lots of disc brake information.
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Olin
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Posted: 23-November-2025 at 2:02PM |
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I have converted rear brakes to disc on my 72 gt wagon but needa pressure proportioning valve to match. Any suggestions?
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Rockatansky
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Posted: 23-November-2025 at 3:08PM |
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if you haven't changed the master you'll need to, there's a residual pressure valve that retains a minimal amount of pressure in the lines and it's different for drum (10 psi) vs disc (2 psi) Summit lists more than several proportioning valves / distribution blocks, you'll want to, match up your fitting sizes and make sure you pick disc / disc
https://www.summitracing.com/search/department/brake-systems/section/proportion-valves/part-type/brake-proportioning-valves-and-distribution-blocks |
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72 GT Ute
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72 RS 351
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Joined: 04-September-2014 Location: Knoxville TN Status: Online Points: 3444 |
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Posted: 23-November-2025 at 3:13PM |
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If other people have used the Mustang SN95 brake master cylinder on their old Fords, the PV from those might work for yours. It's a tough call to guess at that, it's a balance of the front versus rear brake power, and the PV to match them well. I don't know what the most common PV choice is the rear discs on these mid 70's Fords. I will need to find out when I swap discs onto both of my 73's. With those SN95 Mustangs(1994-2004), some have ABS, some don't, and very few had hydro boost brakes. So the PV will be different among the many years there, plus the ABS type have a different internal PV.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000 rpm 351 stroker 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Olin
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Posted: 25-November-2025 at 5:22AM |
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I replaced the master but did not consider a difference for rear disc conversion. The car has front disc brakes. Would i still need to change master
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72 RS 351
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Posted: 25-November-2025 at 7:10AM |
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The combination valve is what balances the front and rear brakes for a given vehicle application. The master cylinder also can make a difference but it's more about total pressure and volume, not the front/rear bias. I suggested the SN95 Mustangs because those are common for parts swapping. Later cars got even more complicated, I haven't read much about those. Your current MC may be very good for your car, it was chosen to match the vehicle weight and the brake power, plus the pedal geometry. So you should likely stick with that MC as long as it seems to work right.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000 rpm 351 stroker 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Rockatansky
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Posted: 25-November-2025 at 12:12PM |
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different masters can have different bore sizes which would certainly change the bias
if it's a disc / drum master and has 2psi / 10psi residual pressure valves it'll drag the rears |
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72 GT Ute
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72 RS 351
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Posted: 25-November-2025 at 2:25PM |
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The MC bore size affects the entire system in the same amount, the bore doesn't change the balance. The MC and combination valve work together on each car, I didn't mean the old MC would be right with the old CV. The CV is the main component which balances the two halves of the system.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000 rpm 351 stroker 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Rockatansky
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Posted: 26-November-2025 at 7:58PM |
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there are masters with stepped bore diameters
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72 GT Ute
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72 RS 351
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Posted: 27-November-2025 at 2:44AM |
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I hope he gets the car sorted well. I know it's very often needed, to swap the MC when changing from rear drum to disc. I haven't read of a lot of those swaps, I will need to find some more before I get into my rear brakes. But I figured I'd find better fronts to fit within 15" wheels first, so I'd know what rotor size to baseline any balancing math with.
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Don
73 Ranchero "Sport 72 front end", floor shift/console, planning EFI 7000 rpm 351 stroker 73 Ranchero GT 351C-4V &4R70W for sale later. 92 Lincoln Mark VII SE GTC, OBDII 347/4R70W |
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Olin wrote: