I lost the brake union for my ae86

Sam2772
Club4AG Regular
Posts: 18
Joined: Tue Dec 16, 2014 5:52 pm

I lost the brake union for my ae86

Postby Sam2772 » Wed Jul 13, 2016 1:56 pm

What is the thing that goes under the master cylinder that connects all 4 brake calipers to the brake master cylinder called and what would you suggest to do if i lost mine

Deuce Cam
Posts: 1346
Joined: Sun Jan 13, 2013 2:41 pm
Location: AZ

Re: I lost the brake union for my ae86

Postby Deuce Cam » Wed Jul 13, 2016 2:06 pm

It's called a brake proportioning (aka prop) valve. Sr5 and gts are different. I believe they're all discontinued from toyota, and I don't think there are any application specific aftermarket replacements. You'll probably have to scour tye classifieds for a used unit, or adapt an aftermarket adjustable unit like this: http://www.jegs.com/i/Wilwood/950/260-1 ... AslG8P8HAQ

Sam2772
Club4AG Regular
Posts: 18
Joined: Tue Dec 16, 2014 5:52 pm

Re: I lost the brake union for my ae86

Postby Sam2772 » Wed Jul 13, 2016 2:23 pm

Deuce Cam wrote:It's called a brake proportioning (aka prop) valve. Sr5 and gts are different. I believe they're all discontinued from toyota, and I don't think there are any application specific aftermarket replacements. You'll probably have to scour tye classifieds for a used unit, or adapt an aftermarket adjustable unit like this: http://www.jegs.com/i/Wilwood/950/260-1 ... AslG8P8HAQ



Thanks. I found one used on ebay for 57.00 but I don't know if its for gts or sr5. I'll just get the adjustable unit.

Jtek
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Joined: Thu Jan 10, 2013 1:59 am

Re: I lost the brake union for my ae86

Postby Jtek » Mon Aug 29, 2016 11:25 pm

From personal experience, I've had no problems with sr5/gts combos of prop valves and rear ends. I've done 22 gtsr5 of all kind.