caliper positioning. opinions please

[J_Dub]

right so im doing this rear disc brake conversion on my lux..
and ive found out that the setup using snr4x4 brackets and mr2 calipers and prado rotors have only been tested mostly on coiled trucks or wide axle converted hiluxes where theres more clearance between springs and hubs, so on my factory leaf sprung rear i cant mount the mr2 calipers up high like i would like.

so heres some pics on the 2 opions I have. what are your opinions? the forward facing option seems best
95% of my wheeling is bush and mud, little rock
and im not using handbrake, ive got a transfer case brake
otherwise is there another caliper i can use thats more slimline that will still work with the snr brackets ive got and the prado rotors

forward facing


forward facing, not bad, the bleed nipple is the most vulerable


rear facing, more overhang


im sure the calipers can handle a bit of a knock at low speed..
i was going to do a u bolt flip but maybe as it is the u bolt plate would help to take some of the shock off the calipers

[rokhound]

I would fire the IFS rear axle housing there if I was you to gain a bit more width. There won't be any issues with extra width in the rear (apart from maybe tyre overhang), and IFS axle housing and axles should be real cheap as you don't need the diff head etc.

[J_Dub]

at this stage I dont want to be doing that, i know the extra width would be beneficial but im trying to tick things off the list and get this thing going with what I have now.

Whats your opinion on that caliper position??????

[rokhound]

Dude I don't like it hanging down there. I have seen calipers bashed off with them out the back and right behind the axle, (a decent log strike will do it). You need to get them up high, and you look like you are going to need a wide axle housing for that.
With all the work going into this thing why are you baulking at the axle swap? It is one of the easist mods you can do, (2-3hrs and all done).
If you were in Chch I could even sort you out with a housing and axles, but alas, you are overseas

[Fakey]

Do the brackets not fit so that the calipers are positioned on top of the axle?

[Smurf]

I agree with rok up high is best, you also really need to have your bleed nipples at the top so you can bleed your calipers easy, Can you swap calipers side to side to get a better position for your bleed nipples?

[tgaguy1]

If you are going to keep the calipers at the bottom; could you weld a deflector plate on the bottom of the U bolt plate to protect them?

[J_Dub]

Dude I don't like it hanging down there. I have seen calipers bashed off with them out the back and right behind the axle, (a decent log strike will do it). You need to get them up high, and you look like you are going to need a wide axle housing for that.
With all the work going into this thing why are you baulking at the axle swap? It is one of the easist mods you can do, (2-3hrs and all done).
If you were in Chch I could even sort you out with a housing and axles, but alas, you are overseas

well i guess like i said i just want this thing rolling again and want to start ticking things off the list rather than adding to it, maybe i just forget the disc conv for now, bolt the wheels on so its rolling so i can get on with the front end then in the mean time look at 130 housing...
this thing is turning into 1 of those builds that starts off with a little maintenance and rust repair to a full on rebuild... all fun and games though

[J_Dub]

Do the brackets not fit so that the calipers are positioned on top of the axle?

no, calipers hang over the leaf springs

[J_Dub]

I agree with rok up high is best, you also really need to have your bleed nipples at the top so you can bleed your calipers easy, Can you swap calipers side to side to get a better position for your bleed nipples?

yep, by swapping the 2 over it brings things up a lillte higher with the bleed nipple and inlet pointing directly up, i might just do it like this for now, so its operational, then in the mean time source a new housing

[J_Dub]

are the rears on a 61 surf and 130 surf the same width, as they are both i.f.s, but the 61s are leaf sprung?????

or is there a later model hilux thats wider than early model, that will make the wide rear swap a bolt in joby?

[muddyhilux]

unfortunatly bro its usually the way 'just gota do this and that then all hell breaks loose',thats why 8wks later im still working on my dads 1 week motor swap which is now on 33s and had almost all the little gremlins ironed out.cant quite make out what you have or haven't done to your plates (saw your thread bout maybe cutting them) but what about drilling new axle mount holes at a different offset. unfortunately when we did oscars rear diff it was a 130 housing we used so didn't have any of these issues,ive got a old housing out back,ill go measure it for you now mate.oh we also tried flipping the plates around which changed position slightly although I'm sure you've already worked that out

[rokhound]

are the rears on a 61 surf and 130 surf the same width, as they are both i.f.s, but the 61s are leaf sprung?????

or is there a later model hilux thats wider than early model, that will make the wide rear swap a bolt in joby?

Think you will find they are the same, but not 100% sure. Go on, loose the plot, flick in the 130 rear and double triangulate it on coil overs

[rangimotors]

yea the housing from th 61 surf is a perfect bolt in solution. (at least until you do a ubolt flip on it as well) only issue i had was handbreak lines (obviously to short) but you won't need to worry if your going th transfer brake style.

[LOLYF]

I've got a 61 housing here if your interested, same width as 130 and leaf spring. It comes with a u bolt flip to.

Mark.

[rangimotors]

only thing to add was the 61 housing meant that i had only half my 36 simex under the gaurd and half sticking out. Should of put flares on but i took the lazy road and got a ticket. The bigger issue was i had to add a bigger deck lift to stop the tyre hitting the gaurd as it flexed up since it no longer tucked under the gaurd nicley. (at least is stopped it hitting the chasis rail)

fun and games.

[J_Dub]

I've got a 61 housing here if your interested, same width as 130 and leaf spring. It comes with a u bolt flip to.

Mark.

how much you want?

[J_Dub]

only thing to add was the 61 housing meant that i had only half my 36 simex under the gaurd and half sticking out. Should of put flares on but i took the lazy road and got a ticket. The bigger issue was i had to add a bigger deck lift to stop the tyre hitting the gaurd as it flexed up since it no longer tucked under the gaurd nicley. (at least is stopped it hitting the chasis rail)

fun and games.

wonder if ill have that prob with mine, being that its a surf body

and cheers for all the replys fellas