mr2 rear disk brake conversion

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1rugger
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mr2 rear disk brake conversion

Post 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:
89 LN106 Hilux 3.0L turbo,2" bodylift 50mm suspension lift, lockrite rear, lsd front & 33" wranglers & winch
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gimmemud
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Re: mr2 rear disk brake conversion

Post by gimmemud »

Got any pics? what vehicle did you get the disks off?
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Steve_t647
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Re: mr2 rear disk brake conversion

Post 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.
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1rugger
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Re: mr2 rear disk brake conversion

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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: .
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Jafa
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Re: mr2 rear disk brake conversion

Post 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
'85 Hilux crawler, 3rz, duals, 4.7's, 4.88's, ARB's, 30 spline Longfields, 6 stud SNR4x4 Histeer, Airshocks up front, coiled rear, 40" Iroks.
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Re: mr2 rear disk brake conversion

Post 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
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Jafa
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Re: mr2 rear disk brake conversion

Post by Jafa »

Yeah Wayne, I have a brake backing plate here, just no time to complete the kit :lol: :roll: :roll:
'85 Hilux crawler, 3rz, duals, 4.7's, 4.88's, ARB's, 30 spline Longfields, 6 stud SNR4x4 Histeer, Airshocks up front, coiled rear, 40" Iroks.
^^^this shite is all about to change....^^^

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Sadam_Husain
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Re: mr2 rear disk brake conversion

Post 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:


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1rugger
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Re: mr2 rear disk brake conversion

Post by 1rugger »

here's some pic's. my actual rear leafs sit est 10mm higher than the one in the photo

Image
Image

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:
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Jafa
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Re: mr2 rear disk brake conversion

Post by Jafa »

How about indexing the caliper bracket around so the caliper is behind the axle?
'85 Hilux crawler, 3rz, duals, 4.7's, 4.88's, ARB's, 30 spline Longfields, 6 stud SNR4x4 Histeer, Airshocks up front, coiled rear, 40" Iroks.
^^^this shite is all about to change....^^^

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1rugger
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Re: mr2 rear disk brake conversion

Post 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.
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1rugger
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Re: mr2 rear disk brake conversion

Post 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:
Image
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Sadam_Husain
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Re: mr2 rear disk brake conversion

Post 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
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Re: mr2 rear disk brake conversion

Post by coxsy »

my thoughts was" bloody hell" :shock:
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Re: mr2 rear disk brake conversion

Post 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
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1rugger
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Re: mr2 rear disk brake conversion

Post 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.
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1rugger
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Re: mr2 rear disk brake conversion

Post 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.
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1rugger
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Re: mr2 rear disk brake conversion

Post by 1rugger »

here's some more pic's for all those pic lovers.
Image
Image
Image

just need to sort out the hand brake and it's all done :mrgreen:
89 LN106 Hilux 3.0L turbo,2" bodylift 50mm suspension lift, lockrite rear, lsd front & 33" wranglers & winch
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