Rear Disc Brake Conversion Kit - Page 19 - Toyota 4Runner Forum

AntonioCm1983 · 10-22-2020, 01:30 AM

They actually come in 2 sizes the post says any rotors 2003 or newer and the 2 sizes I provide are the 2 sizes you can get that is why I asked wasn't sure what would fit better

AntonioCm1983 · 10-22-2020, 01:42 AM

First post actually says 2003 to present right now that would be 2003 to 2021 4runners and I wanted to make it simple since I got the 2004 cobra calipers to use 2004 4runner rear rotors and there is 2 size options for the rotors which is what I provided in the first message I asked... and I originally thought there was only 1 size also but there is actually a 338mm size just thought asking on here would also help people if they wanted to know which one to get I do appreciate your response

Quote:

Originally Posted by Bad Luck

You need 4th gen rear rotors. Says so in the 1st post here. The rears only came in one size as far as I know. 312 mm if I remember correctly.

AntonioCm1983 · 10-22-2020, 01:53 AM

Here is a photo of some info on the 2 sizes I talked about as well as the post on here about it info below

I believe that only the Sport models had the 338mm rotors. The 319mm rotors should have a 13WG or 13WL marking on the calipers while the 338mm rotors have a 13WH marking on the calipers. Here's the rotor diameter as indicated by the markings on the calipers:

13WH- 13.3"/338mm rotor diameter
13WL- 12.6"/319mm rotor diameter
13WG- 12.6"/319mm rotor diameter

This thread may also help:
How To: Upgrading to Sport Brakes (319 to 338mm)

Quote:

Originally Posted by Bad Luck

You need 4th gen rear rotors. Says so in the 1st post here. The rears only came in one size as far as I know. 312 mm if I remember correctly.

Doc2012 · 10-22-2020, 07:24 AM

Quote:

Originally Posted by AntonioCm1983

Here is a photo of some info on the 2 sizes I talked about as well as the post on here about it info below

I believe that only the Sport models had the 338mm rotors. The 319mm rotors should have a 13WG or 13WL marking on the calipers while the 338mm rotors have a 13WH marking on the calipers. Here's the rotor diameter as indicated by the markings on the calipers:

13WH- 13.3"/338mm rotor diameter
13WL- 12.6"/319mm rotor diameter
13WG- 12.6"/319mm rotor diameter

This thread may also help:
How To: Upgrading to Sport Brakes (319 to 338mm)

Those are fronts.

Not rears.

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Bad Luck · 10-22-2020, 08:45 AM

Quote:

Originally Posted by antoniocm1983

they actually come in 2 sizes the post says any rotors 2003 or newer and the 2 sizes i provide are the 2 sizes you can get that is why i asked wasn't sure what would fit better

Quote:

Originally Posted by bad luck

you need 4th gen rear rotors. Says so in the 1st post here. The rears only came in one size as far as i know. 312 mm if i remember correctly.

Quote:

Originally Posted by midcoma

what's required:(details below)

- '94-'04 mustang cobra rear calipers & caliper mounting bracket.
- '94-'04 mustang cobra rear brake pads.
- 2003-present 4runner rear rotors.

rear rotors
All the options you listed are front rotors and calipers. You need rear rotors to go on the rear axle for this rear disk brake conversion

weekendclimber · 10-22-2020, 11:30 AM

Doc2012 · 10-22-2020, 02:03 PM

Quote:

Originally Posted by Bad Luck

rear rotors
All the options you listed are front rotors and calipers. You need rear rotors to go on the rear axle for this rear disk brake conversion

Common sense isn’t so common anymore.

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acmilano · 10-24-2020, 02:14 PM

Are these kits still available for purchase or what's the status?

acmilano · 10-26-2020, 07:00 PM

Quote:

Originally Posted by midcoma

Details added above.

I recommend against a t-case brake. I ran one on my Tacoma for a while and it was a pain. Getting it set up was difficult and part availability was another problem. I can provide the parts to connect the parking brake of the Mustang calipers to the factory hand brake. I've been running that on my 4Runner for a while and it's much nicer than the t-case brake was on the Tacoma.

Are these kits still for sale or was it a one time group buy?

midcoma · 10-30-2020, 01:30 AM

Quote:

Originally Posted by acmilano

Are these kits still available for purchase or what's the status?

Kits are still available; however, I'm waiting for more parking brake cables to come in.

Sorry that I've been a little absent lately. My real job picked back up and I haven't had much free time to be on the forums. I'm glad to see some of these kits getting installed though! Thanks for sharing all the pictures and lessons learned.

weekendclimber · 11-09-2020, 02:42 AM

Working on getting this all installed. As seen in my previous post, I went with the Powerstop S4824A. Problem is, they do not come with a banjo bolt. Hoping someone knows the pitch, length, and size of the banjo bolts as the normal box auto parts stores are telling me they are not made any more

weekendclimber · 11-09-2020, 02:55 AM

Quote:

Originally Posted by atcpup

After reading your post I ran out immediately to get the banjo bolts. Mine threaded up nice and easy. For reference, I ordered Powerstop rear calipers for a 1999 Mustang Cobra. The banjo bolt size is M10 x 1.5

Powerstop Rear Calipers and Banjo Bolt part numbers for 1999 Mustang Cobra

Got it! Please ignore my previous post

weekendclimber · 11-09-2020, 11:57 PM

For future convertees, you can also use BrakeBest (O'reilly's) part #H9479-2 for a replacement banjo bolt 👍

weekendclimber · 11-22-2020, 11:13 PM

Got this done and wrapped up. Definitely make sure to read the first post and check the brake pads that you get. Had to remove some material from mine to get them over the disc properly. Kit is really easy to install overall and very well put together with quality parts and hardware. I'll have a video up once I'm done editing it all with how to get it installed. Instructions are very easy to follow though, so isn't really needed but I hope that helps someone in the future:

Grgg1978 · 12-20-2020, 12:52 PM

Update. Still loving these brakes, definitely feel like they grab so much better than before. No issues so far since the install.

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