disc brake conversion

[jcolville89]

i have a 69 road runner and i want to put disc brakes on the front what are some of the years i can get spindals off of to make work would like the most recent years i can get

 

[68 Sport Satellite]

Do some searching on this sight. This has been covered multiple times and there are lots of useful posts on this issue.

 

[gregpurcell]

I've always found THIS article to be the most comprehensive on disc brake swaps:
http://www.moparaction.com/tech/archive/disc-main.html

 

[MoparBill]

I've always found THIS article to be the most comprehensive on disc brake swaps:
http://www.moparaction.com/tech/archive/disc-main.html

I followed this article and it worked like a champ- 75 Dart spindles and the big rotors/calipers from a 78 Magnum put on a 69 RoadRunner. Use the search tool on this forum- TONS of useful info in the archives....

 

[super-bee_ski]

I could not find all parts so I went w/ the MasterPower brake set up. Came as a kit.
Damn, MOPAR parts are getting harder to find!
Good luck!

 

[jcolville89]

disc brakes

okay thanks i was wondering tho if any 1980 car spindals would fit tho or if i had to stick to the 72 73 cars there just a little harder to find in junk yards

 

[Secret Chimp]

You can actually use a variety of spindles, not just the Dart ones. Yes, there are geometry changes, but they won't send you careening off of the road. Check this article out for details:
http://www.moparmusclemagazine.com/...ping_a_and_b_disc_brake_spindles/viewall.html

 

[ga66mopar]

okay thanks i was wondering tho if any 1980 car spindals would fit tho or if i had to stick to the 72 73 cars there just a little harder to find in junk yards

The 1980 spindles work great. There's only like 3/8 of a inch difference from the 73-76 a-body spindles and the taller spindle which the 1980 had. I used both and I couldn't tell any difference.

 

[Kernel Sanders]

73+ Bbody, F, J, M & R spindles are supposidly the same and can be used. As stated the geometry is a little different and some resources I found, state to the better over A & E spindles. There many many people who have used and continue to use them without issues. The last set I found and have are from an 82 New yorker 5th avenue and can post pictures here if you need

 

[RustyRatRod]

73+ Bbody, F, J, M & R spindles are supposidly the same and can be used. As stated the geometry is a little different and some resources I found, state to the better over A & E spindles. There many many people who have used and continue to use them without issues. The last set I found and have are from an 82 New yorker 5th avenue and can post pictures here if you need

Yup, and much as I love old Rick at Mopar Action, he's mistaken about the bump steer thing with the later spindles. It's just not true. Been debunked a lot. Other than that, that swap article is awesome.

 

[YY1]

The biggest problem I have with the E-burg article is finding all five cars to get individual parts from, some of them pretty difficult.

Why not just use all the parts form the same car?

LKQ charges $75 for the spindle, rotor, and caliper assy from both sides.
The prop valve works too, but you'l have to plumb it with custom bent lines.
Plus $50 for a rockauto m/c and another $20 for the lines and fittings (and maybe $20-30 more if you don't have a flare tool and bender)

Under $200

If you can't find one that looks like it's been recently driven, you can always trade in the calipers and rotors for reman/new, at what, $50-60 per side?

I've seen several 5th Ave's at LKQ with new rotors and pads!

 

[67 coronet]

if your spindles are good,i like the adapter plates from scarebird on ebay.adapts newer calipers and rotors to your spindle.

 

[fatecaptured]

i just bought a whole set up from a guy this past weekend at the nats. He uses fifth ave spindles and the whole kit was $420. New backing plates, rotors, bearings and seals, and hoses. He said to just use the stock metering block and change out the master to a stock front disc/drum. Said he hasn't had any problems with this set up.

I stopped by "The Right Stuff" tent and spoke with those guys and they said they do use the a body spindles with their kits, but also have u use the stock metering valve in conjunction with an adjustable proportioning valve for the rears.

If anyone wants this guys info just pm me, he also does 46-61 disc brake conversions as well.

 

[67 coronet]

most of the factory blocks are just diverter blocks and not metering blocks.when i convert i always install an adjustable prop vale in the rear line.otherwise your back shoes will be stopping with a bit too much presure when you switch masters for the front discs.

 

[YY1]

The "Texas" valve in F/M/J cars (and even in trucks as late as early 90's) is both a distribution and proportioning valve) No seperate adjustable valve necessary.