Disk brakes for 70 challenger w/ 14 in wheels

Bob70challenger · Jul 28, 2025

Hello all, I’m looking to change to front disk but running into a problem finding a conversion kit for 14 inch wheels. I would like to have 15 inch wheels but unfortunately mine came with 14 so that’s what I got. Really don’t wanna have to buy all new tires and mags.I simply cannot find a kit out there that will work on 14 inch wheels. I miss my opportunity a while ago to buy a complete disc brake setup off of another 70 Challenger that had 14 inch wheels. so if anybody out there is selling anything that would work for me or know of a decent conversion kit that would fit 14 inch mags that would be great. Thanks Bob

B5blueGC · Jul 28, 2025

Bob70challenger said:
Hello all, I’m looking to change to front disk but running into a problem finding a conversion kit for 14 inch wheels. I would like to have 15 inch wheels but unfortunately mine came with 14 so that’s what I got. Really don’t wanna have to buy all new tires and mags.I simply cannot find a kit out there that will work on 14 inch wheels. I miss my opportunity a while ago to buy a complete disc brake setup off of another 70 Challenger that had 14 inch wheels. so if anybody out there is selling anything that would work for me or know of a decent conversion kit that would fit 14 inch mags that would be great. Thanks Bob

Pirate Jack Disk Conversion kit. I have 14" wheels and they work just fine.
1970-74 E Body O.E.M. Style Disc Brake Kit & Booster Conversion Kit

sixpactogo · Jul 28, 2025

If you can find a 1980's Aspen or Volare, the complete setup will work for you.

bc3j · Jul 28, 2025

Doctor Diff should be able to set you up with what you need. FWIW I’d consider using all Mopar sourced parts. The Mopar stuff works well together.

Challenger RTA · Jul 28, 2025

Good info above. The drum spindle if I recall needs a sleeve over it. Yours being a 70 drum the rotor bearing is different from the 72 and up. Unless you change you spindle too. Then using all the components from 72 and up. Figure out the way you want to go before buying anything.

Challenger RTA · Jul 28, 2025

Click here: 70 disc hub to 73 spindle grease seal

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Bob70challenger · Jul 28, 2025

sixpactogo said:
If you can find a 1980's Aspen or Volare, the complete setup will work for you.

Now that’s interesting, thank you

Bob70challenger · Jul 28, 2025

B5blueGC said:
Pirate Jack Disk Conversion kit. I have 14" wheels and they work just fine.
1970-74 E Body O.E.M. Style Disc Brake Kit & Booster Conversion Kit

I really thought I tried them, even called. I’ll check them again, thanks

TomIGo · Saturday at 10:05 AM

Bob70challenger said:
I really thought I tried them, even called. I’ll check them again, thanks

I have the same problem with my resto project regarding the 14" wheels and wanting discs on the front. I am finding MANY manufacturers are coming out with conversion kits they say work with 14". Here are a couple I have found. Some require that orders come from dealer, so you may need to ask for a favor from a local place! In some cases the kits might be available from various sources.

MBM Brakes has a kit by OE Quality - DBK6272-MP-203 1962-1972 Mopar B & E Body Standard Front Disc Brake Conversion Kit ( Charger, Challenger, Coronet) w/ 8" Dual Zinc Booster Conversion Kit w/ Adjustable Proportioning Valve

There is also a OE Quality kit part # DBK6272 that does not include the booster or prop valve pieces, and can be purchased on eBay from Auto Parts Direct 4 You (I am leaning toward this one due the seller being just a couple hours from me!) - Front Disc Brake Conversion Kit for B & E Body Dodge Charger Plymouth 1962-1972 | eBay

Performance Suspension Technologies is selling a kit by LEED Brakes, and you can also find out more info about this kit on the LEED Brakes website - https://p-s-t.com/i-23162311-front-manual-disc-brake-conversion-kit.html

Summit Racing is selling a kit by Classic Performance part #CLP-6374CBK-S. Note some info about the kit says it works with 14", some says otherwise! - https://www.summitracing.com/parts/clp-6374cbk-s

Xcudame · Saturday at 6:17 PM

Try ScareBird. Call them to confirm if your 14" wheels will work.

1962-72 Plymouth, Dodge B and E body front disc

www.scarebird.com

Side note: I guess I don't understand way anyone would really want to stick with 14" wheels! Heck, we upgraded my 96 Neon to 2000 Neon 15" wheels years ago! My thinking is the Year One 17" Rallye wheels are the way to go!

mayhem · Sunday at 5:33 AM

Xcudame said:
Side note: I guess I don't understand way anyone would really want to stick with 14" wheels!...My thinking is the Year One 17" Rallye wheels are the way to go!

The man wants what he wants. I support his choice to keep 14" wheels on a classic car - but then modern diameter wheels just don't do anything for me. I guess it's similar to the opinions for carb vs efi, Go Wing vs ducktail spoiler, painting dual hood scoops body color vs matte black, etc. To the OP, you do you and enjoy your car!

DetMatt1 · Sunday at 8:21 AM

I made the switch to 15’s when it was time to buy new tires. I figured it was going to be easier to find and keep tires on it. In my opinion the car looks better with the 15’s, they fill up the wheel wells nicely.

NxCoupe · Sunday at 5:23 PM

Bob70challenger said:
Hello all, I’m looking to change to front disk but running into a problem finding a conversion kit for 14 inch wheels. I would like to have 15 inch wheels but unfortunately mine came with 14 so that’s what I got. Really don’t wanna have to buy all new tires and mags.I simply cannot find a kit out there that will work on 14 inch wheels. I miss my opportunity a while ago to buy a complete disc brake setup off of another 70 Challenger that had 14 inch wheels. so if anybody out there is selling anything that would work for me or know of a decent conversion kit that would fit 14 inch mags that would be great. Thanks Bob

I just did this. I used 73 to 76 dart spindles with the smaller 10.5" rotors, got the spindles off FB marketplace along with the brackets. Bought new rotors, calipers, pads, hoses, bearings and seals from Rock Auto. Bought new stainless lines, metering block, master cylinder and brake booster from inline tube. I put it all on including wheel cylinders I got from amazon and used dot 5 fluid in it since everything is new. I fit my 1966 and down 14" wheels on it. Fit perfectly and stop on a dime. If you're looking for a 'kit', you'll pay more and it might not be what you want. Do some research and buy the stuff yourself.

Xcudame · Sunday at 7:53 PM

Switching from drum to disc is a great idea. And my opinion (not really worth much) is switch to at least 15" wheels. It is getting harder to find decent 14" tires.

mayhem · 2025-08-04T01:30:52-0500

Xcudame said:
Switching from drum to disc is a great idea. And my opinion (not really worth much) is switch to at least 15" wheels. It is getting harder to find decent 14" tires.

I agree. 14" or 15" for the older cars unless you're going autocrossing or something similar.