Rear drum to disk swap
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Senior User
Joined: Sep 2001
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From: USA
Rear drum to disk swap
Ok, I want to add rear disk brakes to my truck. What is the best/cheapest way to accomplish this? Should I buy the $700 kit or is there a cheaper way like visiting the local salvage yard? please help someone that NEEDS to stop better........ 
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From: Virginia
Rear drum to disk swap
Is this generally accepted as the way to better stopping power for a pickup? I was just wondering, since there is very little weight on the rear tires when braking hard, and most newer trucks have antilock or a load sensing valve that pretty much takes most of the braking away from the rear when unloaded to keep the rear wheels from locking up under a panic stop.
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Senior User
Joined: Sep 2001
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From: USA
Rear drum to disk swap
It may not be nessisary for NORMAL pickups but when I get mine where I want it I will have a 300 I-6 EFI w/twin turbo running 25+psi boost, lowered 3 front and 4 rear, and alot of racing goodies. I need disk brakes so I can stop and slow down around corners because I plan to do SCCA autocross in this truck. Plus the "hack factor" is kewl too. 
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From: Virginia
Rear drum to disk swap
Well they phased out the 9 incher in the early 80's, so I doubt you will find anything in the junkyard that has the right bolt pattern and will fit the 9 inch. There is always the Versailes (spelling) rear but who knows if it would bolt to your axle.
Senior User
Joined: Apr 2002
Posts: 198
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From: Oregon
Rear drum to disk swap
>I read somewhere that someone used a '77 caddy rear brake
>system. anyone know about this?
hello, i am new here. this is my first post.
i have a link for a conversion that was just made to swap a ford 9" rear drums to disk using the lincoln rear rotors and calipers.
i will poke around and find the link again.
the guy hasnt finished fabricating the all the parts yet so there will be a wait for them.
>system. anyone know about this?
hello, i am new here. this is my first post.
i have a link for a conversion that was just made to swap a ford 9" rear drums to disk using the lincoln rear rotors and calipers.
i will poke around and find the link again.
the guy hasnt finished fabricating the all the parts yet so there will be a wait for them.
New User
Joined: May 2002
Posts: 1
Likes: 0
From: Jonesboro usa
Rear drum to disk swap
Here's a bonus: If you can find an entire axle assembly from a mid-'70s Lincoln or Mercury car with disc brakes, grab it. Discs were not available on trucks of that era. However, several companies offer disc brake conversion kits to fit most popular models. Smart junkyard shoppers can often find a complete old car of the right year for a few hundred bucks, yank the entire rearend, and they're in business. If you take the time to remove the engine and trans (usually a 460 mated to a C6), you can sell them for more than you paid for the old junker. The result is a free, stout rearend complete with disc brakes
http://www.findarticles.com/cf_0/m1185/n8_v31/19510966/p1/article.jhtml?term=upgrade+um+or+break+em
This is an article i found out of (find articles.com), which origionally came out of offroad magazine, don't know if it works, but sounds interesting, thinking about trying myself.
good luck
http://www.findarticles.com/cf_0/m1185/n8_v31/19510966/p1/article.jhtml?term=upgrade+um+or+break+em
This is an article i found out of (find articles.com), which origionally came out of offroad magazine, don't know if it works, but sounds interesting, thinking about trying myself.
good luck
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Post Fiend
Joined: Nov 2001
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From: Coutts Canada
Rear drum to disk swap
I to am interested in this topic cause i have the same truck only it will have a 2/4 drop with a 351clevo (seems like every one of these trucks (a few exceptions mine for one has the 351w currently and i know a couple that have built 302s) and it will be used for bracket racing/show.(i need to put in a 4 link in it sometime)
What about using a mustang 9 incher conversion for a disk brake swap or anything that had a ford 9 incher that the same size. Or taking the disc brakes out of a ttb of a similar year? it might work, you would probably need to take the whole front baking system.
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo
What about using a mustang 9 incher conversion for a disk brake swap or anything that had a ford 9 incher that the same size. Or taking the disc brakes out of a ttb of a similar year? it might work, you would probably need to take the whole front baking system.
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo
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Post Fiend
Joined: Nov 2001
Posts: 5,871
Likes: 0
From: Coutts Canada
Rear drum to disk swap
I forgot to mention something, if you put about 300lbs of weight behind the rear axle you would not believe how much braking would be improved (not to mentioned the ride of the vehicle will be to)
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo
New User
Joined: Mar 2002
Posts: 15
Likes: 0
From: Golden USA
Rear drum to disk swap
The disk brake set up from a 77 caddy is the system a couple of the aftermarket guys copied for rear disk. The rear brakes off of a Versailles is a good fit. I can't remember the exact years. I have rear disk on 55 Chevy 2-door Wagon. Ford 9 inch rear. It is an all stock setup. I'll dig up the exact parts used and post. Two big items, you will need new master cyl. and remove portioning valve.
New User
Joined: Dec 2000
Posts: 16
Likes: 0
Rear drum to disk swap
I did this swap. I went from an 8.8 to a 9". You have to find a housing with late model big bearings or have them installed to get the stuff to work. I didn't want to mess with combing yards so I bought the SSB stuff. Worked out great.
Steve Randa
Steve Randa
Fleet Mechanic
Joined: Aug 2000
Posts: 1,504
Likes: 1
From: Texas
Rear drum to disk swap
>What about using a mustang 9 incher conversion for a disk
>brake swap or anything that had a ford 9 incher that the
>same size. Or taking the disc brakes out of a ttb of a
>similar year? it might work, you would probably need to take
>the whole front baking system.
>
The only problem you have here, is your bolt patterns. The Mustangs were 5x4.25, and the full size pickups were 5x5.5!
Unless you happen to have an F-100 front suspension, then those were only 5x4.25 for a couple of years.
Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
Rear drum to disk swap
The 80-83 F100's with power brakes are the only ones with the small bolt pattern, manual brake trucks have the standard F150 bolt pattern and braking components. This had me confused for a while, people kept asking me if my truck had the small bolt pattern...
Evan MacDonald
1982 F100 SWB
300 HD: Cliffy 290H, 9.1:1 compression, forged everything, ARP'd bottom end/Hedman hedder/dual 2½" exhaust
NP 435/2.75 geared 9"
1986 F150 HD, 300 HD/needs a NP 435/4.10 geared 8.8
70,000 miles
1984 F150 XLT Lariat parts donor, 351W/C6/9" LOADED to the hilt, 201,000 miles
1980 F100 Custom, 300/Np 435/2.75, 58,000 miles
Evan MacDonald
1982 F100 SWB
300 HD: Cliffy 290H, 9.1:1 compression, forged everything, ARP'd bottom end/Hedman hedder/dual 2½" exhaust
NP 435/2.75 geared 9"
1986 F150 HD, 300 HD/needs a NP 435/4.10 geared 8.8
70,000 miles
1984 F150 XLT Lariat parts donor, 351W/C6/9" LOADED to the hilt, 201,000 miles
1980 F100 Custom, 300/Np 435/2.75, 58,000 miles
New User
Joined: Jun 2002
Posts: 4
Likes: 0
From: Manitowoc U.S.A.
Rear drum to disk swap
i heard that if your lucky enough to find one of the newer lincoln trucks inthe bone yard the brake parts should fit but i've had the chance to try .i wish ya the best of luck
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