Toy Rear Disc brakes

[WheelinWurm]

Lookin for some input for a couple things.

first, I have already got my brakets rotors(Sky-MFG) and calipers(82 Monte)

I am thinking of a Master Cyl from 92 FJ80 (non-ABS)

Gonna Make the Brake lines

For a parking break I am looking at using:
http://jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?productId=1133&catalogId=10101&langId=-1&storeId=10101

For the Proportioning Valve I am lookin at:
http://store.summitracing.com/partdetail.asp?part=WIL%2D260%2D2220

What do you guys think?

[Havok]

that Brake valve kinda scares me. I like the Mico line locks. very well designed. but spendy. but it's your brake:D

[Jeepdude_Jay]

I just used a ball valve for a parking brake. Basically the same thing as what you're looking at. Cost me about $10 plus the pipe to flare adapters.

[Arnold]

I think a friend of mine is running that brake lock thingy on his Toy and has had nothing but probs. Sometimes it'll hold and sometimes it won't.:wow: I recall him saying he should've gone w/ the calipers w/ a built in parking brake that you can attach the stock p-brake cable to.

[tinbeater]

I have a lot of guys in our group that ran disk on the back of there toy trucks with the same set up but one guy in our group made the brackets and they havent changed the master cyclinder or used a porpotioning valve and seems to work really good for them. I myself have the same on my samuria with toy axels had to run a proportioning valve because it was so light it would lock up the rears to fast . this guy is on the pirate board gooes by fabricator check his post out.

[Ben W]

The rockstomper GM master cylinder conversion looks good. Aren't toyota master cylinders hideously expensive?

check this out - http://www.rockstomper.com/catalog/brakes/gmtoymaster.htm

[WheelinWurm]

Originally posted by Ben W
The rockstomper GM master cylinder conversion looks good. Aren't toyota master cylinders hideously expensive?
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I found a new one, non-ABS, through Napa for $86. And that has the residual check valve built in.

[Ben W]

does that include the reservoirs? You don't need a residual pressure valve unless the MC is lower than the calipers.

I'm not saying the rockstomper setup is the way to go, Its just another option. You might email rockstomper to see if he recommends his setup with the toy front calipers and GM rears.

[Not-Jobless]

Originally posted by Ben W
The rockstomper GM master cylinder conversion looks good. Aren't toyota master cylinders hideously expensive?

check this out - http://www.rockstomper.com/catalog/brakes/gmtoymaster.htm

Looks just like the '67 Vette master I'm using from Schucks at $39.00

[tinbeater]

Originally posted by Ben W
The rockstomper GM master cylinder conversion looks good. Aren't toyota master cylinders hideously expensive?

check this out - http://www.rockstomper.com/catalog/brakes/gmtoymaster.htm I dont know they were already on there toyota trucks and 4runners. I myself used a 4wheel disk brake master cyclinder off a firebird on my samiria and it works really good with toy axels and 35s

[Bunk]

I got a 92 fj-80 master and ssbc prop valve. Master has a aux valve built in for rear discs. Only thing is you gotta redo/bend the brake lines to the other side on the fj-80 master. Prop valve is nice for dialing in the rears.
Edit: stock toy front disc's on rear.

[MEDIC!]

Originally posted by WheelinWurm
]http://jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?productId=1133&catalogId=10101&langId=-1&storeId=10101[/url]

For the Proportioning Valve I am lookin at:
http://store.summitracing.com/partdetail.asp?part=WIL%2D260%2D2220

What do you guys think? [/B]

I used these park locks on my buggy and had nothing but problems. They would jam closed and the only way to release them was to crack the bleeders. The other thing was I had to run tons of extra brake line to get these where I could reach them.

I changed them out to some simple electric locks and they work great. I could have them on for weeks with no problem. they draw just a tiny amount of power. http://store.summitracing.com/partdetail.asp?part=SBR%2DLL

The Monte calipers are the same as what I have on my Buggy and my cruiser. I found that the Fj40 Master works fine. On the Buggy I'm using a 7/8" bore Master from Wildwood with the same proportioning valve you're thinking about and they work good.

[WheelinWurm]

Originally posted by MEDIC! I changed them out to some simple electric locks and they work great. I could have them on for weeks with no problem. they draw just a tiny amount of power. http://store.summitracing.com/partd...p?part=SBR%2DLL


Looks like a sweet line lock:cool:

Thanks for the link Ben. I was concerned about the plumbing, but I am gonna have to redue most of it anyway. BTW does Jay still have those D20 (I think they were 20's)

[Crash]

rotors off a gm 1/2 ton 4x4, and dana 44 calipers, weld on caliper brackets...

[88yj]

so these little things, just slip them into the hardline, and wire a switch and youre good to go? These look pretty sweet! Am I missing anything, or is that all you have to do to them? Do they ever lock your brakes up, if theyre left on for awhile...worry about freezing the caliper? thanks
Originally posted by MEDIC!
I used these park locks on my buggy and had nothing but problems. They would jam closed and the only way to release them was to crack the bleeders. The other thing was I had to run tons of extra brake line to get these where I could reach them.

I changed them out to some simple electric locks and they work great. I could have them on for weeks with no problem. they draw just a tiny amount of power. http://store.summitracing.com/partdetail.asp?part=SBR%2DLL

The Monte calipers are the same as what I have on my Buggy and my cruiser. I found that the Fj40 Master works fine. On the Buggy I'm using a 7/8" bore Master from Wildwood with the same proportioning valve you're thinking about and they work good.