Today, I'll be showing you how to perform a drum to disc conversion on any 9th gen (2003-2008) Corolla CE, LE, and S.
This is my first real how to/guide video, so please leave in the comments what you thought of the video, if there was anything that was hard to follow, and how I can improve for the future. I'll also try to answer your questions. Thanks!
Here's the write up of the swap that I stole a couple pictures from: www.diymytoyota...
Definitely worth a read if you are planning this swap as well.
Warning: When buying new hub bolts, you MUST get proper grade bolts, not any random bolt that is the right size. If the bolts you buy are regular general purpose bolts, they will break!
Common Questions And Answers:
Q: What cars can I use parts from?
A: 2000-2005 Celica GTS, 2003-2006 Matrix XRS, 2003-2006 Vibe GT, 2005-2006 Corolla XRS, 2007 Matrix M-Theory (More will be added if I missed any)
Q: What about the proportioning valve? Do I need to replace it?
A: I didn't replace the valve and had no issues. However, since disc brakes and drum brakes require different amounts of brake fluid to function properly, it is recommended to replace it. Many have said that they've experienced not enough pressure from the rear brakes, so just because I was fine doesn't mean that you will be too.
Q: Will this work on other Corolla generations?
A: The only other generation I know anything about regarding this swap is the 10th gen Corolla. 2009-2010 XRS models have rear discs, and I'm sure it's a direct swap to CE, LE, and S models.
(7th and 8th gen, check out this video: • Corolla S Rear Disc Co... )
Q: Can I do this swap on other Toyota cars? (other being cars that aren't based on the Corolla)
A: I have no idea. Maybe you can, maybe you can't. Look around on forums for your specific vehicle to see if a disc swap has been covered.
Q: Can I use my old parking brake cables on the disc conversion?
A: It's possible, and has been done many times. However, I know nothing about modifying the old cable. For easiest installation, get the parking brake cable for the Corolla XRS.
Q: Where can I get these parts?
A: Used parts are the way to go. Getting all new parts from a dealer for this conversion would cost a ridiculous amount. Some small pieces can also be unobtainable, or very difficult to find new. Junkyard is the way to go, or contact @clay_bass_garage on Instagram and ask if they have any disc conversion kits available.
Q: Can I use the old wheel hubs, or do I need to get new ones?
A: The old hubs will work fine. The backing plate for the discs is slightly thicker than the backing plate for the drums, so longer bolts should be installed. You can buy these from the hardware store, or from the dealer if you really want to.
Q: What is the thread size of the hub bolts?
A: M10x1.25. Stock are 30mm long, I believe the ones I installed are 40mm.
Q: Does the master brake cylinder need to be changed?
A: No it doesn't. Most people who have done this conversion (including me) have used the old master cylinder without any issues. If you really want to complete this swap then feel free to replace it, but it doesn't seem necessary in my eyes.
Q: How much does this all cost? Is it worth it?
A: Be prepared to shell out at least a couple hundred. More if you're looking to install things like new calipers, new rotors, new cables, etc. The more brand new parts you install, the more money you spend. Whether or not the swap is "worth it" is entirely opinionated. I believe it's worth it, Uncle Jerry who drives a Cummins might say no.
Q: How long does this conversion take to install?
A: Depends on your mechanical skill and knowledge level. Took me about 4 hours, including filming. May take you a whole weekend if you're newer to this stuff. If you're a newbie, definitely ask for help from more experienced people. Brakes are no joke, if they're not done right you will see the consequences real quick.
Q: You said at the end that you heard a scraping sound. What was it, and how can I avoid it?
A: The backing plate was bent, and was touching the rotor. After I bent it back again, the noise was gone. When you've completed the install, check to see if the rotor rubs on the backing plate before you install the wheel and drive it. (And make sure the backing plate is not bent. If it is, bend it away from the rotor.)
Q: What should I do after watching this video?
A: You should like and subscribe! In all seriousness, liking and subbing if you enjoyed this video or thought it was helpful would be absolutely amazing, and would help the channel out a ton. Thanks!
END OF Q&A
Gaming Channel: / @futuretimetheformergamer
Social media:
Twitter: / futuretimeyt
Instagram: / willhchang
Facebook: / willhchang
Wheelwell: wheelwell.com/...
#9thgencorolla #discconversion
Thanks for watching!