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mr2 rear disk brake conversion

Posted: Tue Jun 02, 2009 7:51 pm
by 1rugger
I've built up a surf wide axle rear diff with the mr2 rear brakes almost ready to put it into my lux but need to sort out the hand brake cables. wondering what setup's work and the cheapest way to hook them up. i'm hopping to use the existing hand brake lever just not sure on how to hook up the cables :?: i'm guessing i'm going to have to get custom cables made. also have a problem with the mr2 hand brake lever hitting the leaf springs :?: may need to shorten lever by 3-4mm which will effect leverage on hand brake so was wondering how effective these hand brakes are on a hilux :?: any info would be great :mrgreen:

Re: mr2 rear disk brake conversion

Posted: Tue Jun 02, 2009 8:13 pm
by gimmemud
Got any pics? what vehicle did you get the disks off?

Re: mr2 rear disk brake conversion

Posted: Tue Jun 02, 2009 8:29 pm
by Steve_t647
Best option is to use a normal handbrake like bulletproof had done, you should run two lines to the brakes and a balance. Have seen handbrakes done a couple of ways but the factory pull is not very efficient for disk brakes.

Re: mr2 rear disk brake conversion

Posted: Tue Jun 02, 2009 10:14 pm
by 1rugger
would like to keep my cab as original/tidy as possible so will attempt to keep factory hand brake but may have to do a bit of fabrication to get the right leverage but if i shorten the lever on the brake i'm worried i'll end up snapping cables all the time. used 6 stud prado(i think) rear disk's with one of marks adapters from http://www.snr4wd.co.nz so far everything has just bolted up without any problems other than the hand brake issue. also have ifs hubs to install which will be the next mission.will get some pic's tomorrow :mrgreen: .

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 8:28 am
by Jafa
1rugger wrote:would like to keep my cab as original/tidy as possible so will attempt to keep factory hand brake but may have to do a bit of fabrication to get the right leverage but if i shorten the lever on the brake i'm worried i'll end up snapping cables all the time. used 6 stud prado(i think) rear disk's with one of marks adapters from http://www.snr4wd.co.nz so far everything has just bolted up without any problems other than the hand brake issue. also have ifs hubs to install which will be the next mission.will get some pic's tomorrow :mrgreen: .


http://www.snr4x4.co.nz :P :P

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 8:32 am
by vvega
Jafa wrote:
1rugger wrote:would like to keep my cab as original/tidy as possible so will attempt to keep factory hand brake but may have to do a bit of fabrication to get the right leverage but if i shorten the lever on the brake i'm worried i'll end up snapping cables all the time. used 6 stud prado(i think) rear disk's with one of marks adapters from http://www.snr4wd.co.nz so far everything has just bolted up without any problems other than the hand brake issue. also have ifs hubs to install which will be the next mission.will get some pic's tomorrow :mrgreen: .


http://www.snr4x4.co.nz :P :P

btw jafa i have the hole centers now as well for the crusier axles .. or are you sorted with that now

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 8:46 am
by Jafa
Yeah Wayne, I have a brake backing plate here, just no time to complete the kit :lol: :roll: :roll:

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 10:39 am
by Sadam_Husain
1rugger wrote:I've built up a surf wide axle rear diff with the mr2 rear brakes almost ready to put it into my lux but need to sort out the hand brake cables. wondering what setup's work and the cheapest way to hook them up. i'm hopping to use the existing hand brake lever just not sure on how to hook up the cables :?: i'm guessing i'm going to have to get custom cables made. also have a problem with the mr2 hand brake lever hitting the leaf springs :?: may need to shorten lever by 3-4mm which will effect leverage on hand brake so was wondering how effective these hand brakes are on a hilux :?: any info would be great :mrgreen:


I've got Subaru callipers on my truck but the principal should be the same, the callipers are using the origional subaru handbrake cables and pickup my shortened cruiser handbrake cable under the tray.

If your handbrake levers are hitting your leafsprings it might get a bit tricky :? :oops:


Image

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 12:40 pm
by 1rugger
here's some pic's. my actual rear leafs sit est 10mm higher than the one in the photo

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also got the spring perches from http://www.snr4x4.co.nz :mrgreen:

wounder if that gets me discount on my next purchase for advertising :mrgreen: :mrgreen: :lol:

Re: mr2 rear disk brake conversion

Posted: Wed Jun 03, 2009 1:42 pm
by Jafa
How about indexing the caliper bracket around so the caliper is behind the axle?

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 10:06 am
by 1rugger
i was thinking of that but like having them up high and out of the way. also the hand brake cable is on the right angle.

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 10:17 am
by 1rugger
also got the diff fitted yesterday after i solved the problem of how do i jack the truck up to remove the diff with a high lift and no axle stands high enough :roll: :roll: :idea:
Image

also here's a pic of the overall width difference of the diff's. :twisted:
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Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 1:33 pm
by Sadam_Husain
Nice work mate but you might want to pull those pic's of lifting the truck coz that looks real dodgy, you could stack some wheels or something under it to support the weight of the vehicle if you havent got any axle stands

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 2:13 pm
by coxsy
my thoughts was" bloody hell" :shock:

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 2:33 pm
by hosehustler
1rugger wrote:also got the diff fitted yesterday after i solved the problem of how do i jack the truck up to remove the diff with a high lift and no axle stands high enough :roll: :roll: :idea:


Best otion for removing axles complete safely at home is to still use your axle stands, one under each chassis rail, take the wheels off and lower axle onto a trolley jack and drag it out without the wheels on once you've undone all the mounts.

If you index your mounts towards the front do the hit the springs?
heres a shot of mine.
Image

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 3:07 pm
by 1rugger
i agree it does look dodgy but was never under it it like that as i always had springs sitting an axles with wheels on when i was under it and a steel ramp jammed under chassis so if the jack failed it nothing would happen. that photo was taken when i jacked it up to roll the diff out and by no means was i under the truck at that stage.

all in now and works really well, infact too well i'll have to hook up the rear brake balance bar as the rear overpowers the front brakes.

was wondering if someone with a 130 series surf could take a photo of how the center hand brake arm is setup as they have two separate hand brake cables to the rear and there center arm has more leverage than my old one.

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 3:18 pm
by 1rugger
hosehustler wrote:If you index your mounts towards the front do the hit the springs?


yes they do still hit the springs unless you go a bit further fwd then the brake is the lowest part.
thinking of fabricating a new arm and bracket as it will be the only option if i keep the brakes where they are.

Re: mr2 rear disk brake conversion

Posted: Thu Jun 04, 2009 5:35 pm
by 1rugger
here's some more pic's for all those pic lovers.
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just need to sort out the hand brake and it's all done :mrgreen: