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Che

az supporter
Joined: Thu Mar 11, 2010 10:30 pm Posts: 2401 Location: Perth
Vehicle: LPG 1.6 Sierra
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 Posted: Wed Feb 16, 2011 12:33 pm |
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What is the cost in parts for a typical Sierra rear disc conversion? Just wondering how much more sorting rear discs would cost than a total overhaul of the standard drums? I've had mine checked - they're OK but on their last legs
Is a conversion a worthwhile mod for a daily driver, or just something you do if you were a big wheeled zook nutter 
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Wed Feb 16, 2011 12:33 pm |
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_________________ BlueSuzy wrote: I'm over the G16b's.
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Wed Feb 16, 2011 12:39 pm |
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che - i'm actually getting suzistore to price up doing the conversion for me using benT's adaptors and suzistore supplying the rest (calipers, rotors, the lot as well as a prop valve and fitting)...
when i get the price i'll let you know.
_________________ 
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Che

az supporter
Joined: Thu Mar 11, 2010 10:30 pm Posts: 2401 Location: Perth
Vehicle: LPG 1.6 Sierra
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 Posted: Wed Feb 16, 2011 12:51 pm |
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That's cheap as chups BenT, if labour isn't a killer cost it's a 100% goer then.
Keep us inform Mr Alien, if you go ahead with it tell us what you reckon with it all too.
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Teracis
Joined: Sat Dec 11, 2010 10:03 pm Posts: 2261 Location: Gold Coast
Vehicle: Daisy
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 Posted: Wed Feb 16, 2011 6:52 pm |
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Don't you also need a handbrake to go on the transfercase (or a shaft) so that you still have a handbrake?
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want33s

az supporter
Joined: Fri Nov 16, 2007 10:30 pm Posts: 8134 Location: Sunshine Coast Qld
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 Posted: Wed Feb 16, 2011 7:18 pm |
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Teracis wrote: Don't you also need a handbrake to go on the transfercase (or a shaft) so that you still have a handbrake?
Not if you use calipers from the back of a car that has a handbrake built in EG: Pintara... Magna... Lancer..
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Wed Feb 16, 2011 9:43 pm |
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i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked.
_________________ 
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Wed Feb 16, 2011 10:12 pm |
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alien wrote: i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked.
With 1 shit drum? I dont.
Never rely on your handbrake.
_________________ BlueSuzy wrote: I'm over the G16b's.
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2stroker
Joined: Sun Sep 07, 2008 11:30 pm Posts: 2689 Location: North Brisbane
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 Posted: Wed Feb 16, 2011 10:38 pm |
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want33s wrote: Teracis wrote: Don't you also need a handbrake to go on the transfercase (or a shaft) so that you still have a handbrake? Not if you use calipers from the back of a car that has a handbrake built in EG: Pintara... Magna... Lancer..
Yeah Jas but the Sierra kit is made for non handbrake sierra front calipers on the back and will need the fitter to work out their front to rear bias and then fit the approtriate proportioning valve. The master cyl will have to have the return dampening valve removed from the rear circuit as well. I personally think that Sierra's have very good brakes. Most of the time when people have told me that they are unhappy with their Sierra's brakes it has proved to be because their brakes are operating at way way less than their full potential. In my opinion I would overhaul the standard brakes before doing a disc conversion unless of course you were someone with the expertise to do it properly.
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Wed Feb 16, 2011 10:39 pm |
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alien wrote: i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked.
Shit, thinking is not your strong point is it, doesnt matter if the brake is on teh shaft or a pair of axles, all wheels on the ground in 4wd it will brake all wheels, the only advantatage is it uses the mechanical advantage of teh diff gears to multiply the force needed to overcome the brake.
Unlocked diffs a tailshaft handbrake will not work if 1 wheel both ends has no traction, even one rear wheel a little off the ground up a hill will see it roll backwards till it hits firm ground, a pair of brakes on a diff will still have some holding.
Drums make for better handbrakes than discs as there is more surface area
Che, unless you are a regular mud plugger there is no advantage and I would think the labour alone to fit discs would be dearer than an all up rebuild of your rear brakes (remember the axles need to come off, the old backing plates need to be cut off or removed, which means the wheel bearings have to come off
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2stroker
Joined: Sun Sep 07, 2008 11:30 pm Posts: 2689 Location: North Brisbane
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 Posted: Thu Feb 17, 2011 1:26 am |
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royce wrote: alien wrote: i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked. Shit, thinking is not your strong point is it, doesnt matter if the brake is on teh shaft or a pair of axles, all wheels on the ground in 4wd it will brake all wheels, the only advantatage is it uses the mechanical advantage of teh diff gears to multiply the force needed to overcome the brake. Unlocked diffs a tailshaft handbrake will not work if 1 wheel both ends has no traction, even one rear wheel a little off the ground up a hill will see it roll backwards till it hits firm ground, a pair of brakes on a diff will still have some holding. Drums make for better handbrakes than discs as there is more surface area Che, unless you are a regular mud plugger there is no advantage and I would think the labour alone to fit discs would be dearer than an all up rebuild of your rear brakes (remember the axles need to come off, the old backing plates need to be cut off or removed, which means the wheel bearings have to come off
Exactly
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ajsr

az supporter
Joined: Sun Dec 28, 2008 10:30 pm Posts: 3712 Location: melb
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 Posted: Thu Feb 17, 2011 1:55 am |
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personally I think the brakes on my sierra are great even with 34's
the only time I think disks would be nice is when Ive filled the drum with mud and sand and have to take the drum off for a clean out, but thats bogholes for you.
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bieebs!
Joined: Mon Jan 24, 2011 12:45 am Posts: 10 Location: trailer park, SE qld
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 Posted: Thu Feb 17, 2011 2:22 am |
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royce wrote: alien wrote: i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked. Shit, thinking is not your strong point is it, doesnt matter if the brake is on teh shaft or a pair of axles, all wheels on the ground in 4wd it will brake all wheels, the only advantatage is it uses the mechanical advantage of teh diff gears to multiply the force needed to overcome the brake. Unlocked diffs a tailshaft handbrake will not work if 1 wheel both ends has no traction, even one rear wheel a little off the ground up a hill will see it roll backwards till it hits firm ground, a pair of brakes on a diff will still have some holding.
unless you have a locked diff 
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ajsr

az supporter
Joined: Sun Dec 28, 2008 10:30 pm Posts: 3712 Location: melb
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 Posted: Thu Feb 17, 2011 3:16 am |
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bieebs! wrote: 2stroker wrote: royce wrote: alien wrote: i want to do mine using sierra calipers and the e-brake from a NT tcase (so it locks the tcase)... i like the idea of when in 4wd having all 4 wheels braked. Shit, thinking is not your strong point is it, doesnt matter if the brake is on teh shaft or a pair of axles, all wheels on the ground in 4wd it will brake all wheels, the only advantatage is it uses the mechanical advantage of teh diff gears to multiply the force needed to overcome the brake. Unlocked diffs a tailshaft handbrake will not work if 1 wheel both ends has no traction, even one rear wheel a little off the ground up a hill will see it roll backwards till it hits firm ground, a pair of brakes on a diff will still have some holding. unless you have a locked diff 
thinking is not the strong point with this one either, royce said exactly that in his post, if you bother to read it again 
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tmb99

az supporter
Joined: Tue Mar 09, 2010 10:30 pm Posts: 330 Location: Brisvages
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 Posted: Thu Feb 17, 2011 3:42 am |
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What about the wear rate of drums? Mine went from about half to nothing over 2 days of muddy driving. Thinking instead of getting new pads, put the $$ towards a disc conversion. BenT's kit, vit front upgrade, stock front on the back.
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mondo
Joined: Wed Dec 29, 2010 10:18 pm Posts: 481 Location: Jimboomba
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 Posted: Thu Feb 17, 2011 4:37 am |
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i've got standard brakes on my coily, only running 235/75's, and im more than happy with the braking power. only hassle is mud, seems to get stuck in the drum. Is this the only reason people switch to discs for the rear?
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chris_mac
Joined: Sat Aug 23, 2008 11:30 pm Posts: 283 Location: Sydney
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 Posted: Thu Feb 17, 2011 4:42 am |
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Thu Feb 17, 2011 4:52 am |
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chris_mac wrote: instead of doing rear disc conversion can anyone tell me if it would be more beneficial to swap standard front sierra disc for a slotted ones? does it make the brakes stronger or only more heat resistant? http://www.suzispares.com/scripts/prodV ... roduct=705kris
Not for that price!!!
I doubt you would ever notice the difference, slots are really to just help wipe the pad in heavy braking
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chris_mac
Joined: Sat Aug 23, 2008 11:30 pm Posts: 283 Location: Sydney
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 Posted: Thu Feb 17, 2011 4:55 am |
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royce wrote: chris_mac wrote: instead of doing rear disc conversion can anyone tell me if it would be more beneficial to swap standard front sierra disc for a slotted ones? does it make the brakes stronger or only more heat resistant? http://www.suzispares.com/scripts/prodV ... roduct=705kris Not for that price!!! I doubt you would ever notice the difference, slots are really to just help wipe the pad in heavy braking
thanks Royce, i thought it's a bit pricey comparing to standard discs
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alien
Joined: Wed Mar 24, 2010 10:30 pm Posts: 16343 Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.
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 Posted: Thu Feb 17, 2011 5:17 am |
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royce wrote: Shit, thinking is not your strong point is it,
just like your personality isn't yours mate...
however the information you provided after that remark was useful and has been taken on board, so thanks for that.
_________________ 
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Thu Feb 17, 2011 6:52 am |
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alien wrote: royce wrote: Shit, thinking is not your strong point is it, just like your personality isn't yours mate... however the information you provided after that remark was useful and has been taken on board, so thanks for that.
So you know Royce well enough to make that judgment?? 
_________________ I used to be indecisive,
now I'm not so sure.....
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96coily
Joined: Fri Jun 04, 2010 11:37 am Posts: 1420 Location: Perth Hills
Vehicle: 96 coily Awesome sticker Rust
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 Posted: Thu Feb 17, 2011 9:29 am |
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steak_knife wrote: alien wrote: royce wrote: Shit, thinking is not your strong point is it, just like your personality isn't yours mate... however the information you provided after that remark was useful and has been taken on board, so thanks for that. So you know Royce well enough to make that judgment?? 
They must know each other rather well for each of them to be making subjective judgements... or is that just a one way street on this forum 
_________________ I have issues
What are you looking at
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steak_knife

az supporter
Joined: Fri May 22, 2009 11:30 pm Posts: 21335 Location: Smart Ass Island
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 Posted: Thu Feb 17, 2011 9:30 am |
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96coily wrote: steak_knife wrote: alien wrote: royce wrote: Shit, thinking is not your strong point is it, just like your personality isn't yours mate... however the information you provided after that remark was useful and has been taken on board, so thanks for that. So you know Royce well enough to make that judgment??  They must know each other rather well for each of them to be making subjective judgements... or is that just a one way street on this forum 
Not sure peanut.... 
_________________ I used to be indecisive,
now I'm not so sure.....
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96coily
Joined: Fri Jun 04, 2010 11:37 am Posts: 1420 Location: Perth Hills
Vehicle: 96 coily Awesome sticker Rust
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 Posted: Thu Feb 17, 2011 10:24 am |
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 peanut 
_________________ I have issues
What are you looking at
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UBZ
Joined: Sun Nov 16, 2008 10:30 pm Posts: 297 Location: NZ
Vehicle: LJ50 , LJ80Q-II
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 Posted: Thu Feb 17, 2011 10:48 pm |
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I have spider trax brackets and vitara calipers on the back of my NT.with a proportioning valve.
Stock front calipers diddnt work as the bleed nipple made full contact with the bump stop whille flexing
One of the best offroad upgrades I've done to my zuk.
We wheel alot in the wet here in Nz and my drums were only good untill they got wet and I was going through drum pads like cheese due to the mud. The problem is the spider trax bracket leaves bottom of the wheel bearing exposed shortening their life dramatically , currently sorting a solution on form of a cover to fill the gap
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2stroker
Joined: Sun Sep 07, 2008 11:30 pm Posts: 2689 Location: North Brisbane
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 Posted: Thu Feb 17, 2011 11:13 pm |
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I have never had a problem with brake wear in my suzuki's, if you think about how your brakes work and wear you would imagine that slowing the vehicle from road speeds to a stop over and over again on your daily commute would cause more wear than the slow speed brake applications that you use off road crawling. I think that as others have said it is the mud and dirt ingression that plays havock with brakes (and other mechanicals)
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JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
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 Posted: Thu Feb 17, 2011 11:21 pm |
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2stroker wrote: I have never had a problem with brake wear in my suzuki's, if you think about how your brakes work and wear you would imagine that slowing the vehicle from road speeds to a stop over and over again on your daily commute would cause more wear than the slow speed brake applications that you use off road crawling. I think that as others have said it is the mud and dirt ingression that plays havock with brakes (and other mechanicals)
I only got a year ~12000k's outta rear shoes doing mainly road work and very minimal offroad wheel deep muddy crap. Shoes were only a few mm from their backing. Wonder if this wear has something to do with the quality of some aftermarket shoes?
Sidenote:
That bloody auto adjuster is a joke. It doesn't seem to auto do much anything! Unless all the aftermarket shoes have got the slots cut to big for the adjuster, the adjuster itself is going to need some modifications
Dan
_________________ Lil Foot!
http://tiny.cc/gtsw1
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303zuke

az supporter
Joined: Wed Aug 19, 2009 11:30 pm Posts: 2447
Vehicle: LJ50V, SJ70
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 Posted: Thu Feb 17, 2011 11:41 pm |
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2stroker wrote: want33s wrote: Teracis wrote: Don't you also need a handbrake to go on the transfercase (or a shaft) so that you still have a handbrake? Not if you use calipers from the back of a car that has a handbrake built in EG: Pintara... Magna... Lancer.. Yeah Jas but the Sierra kit is made for non handbrake sierra front calipers on the back and will need the fitter to work out their front to rear bias and then fit the approtriate proportioning valve.
Joeblow's Sierra kit is made to use Pintara/Skyline rear calipers with a handbrake. There was a bit of a write up in the "I made it" forum.
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JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
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 Posted: Thu Feb 17, 2011 11:44 pm |
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303zuke wrote: 2stroker wrote: want33s wrote: Teracis wrote: Don't you also need a handbrake to go on the transfercase (or a shaft) so that you still have a handbrake? Not if you use calipers from the back of a car that has a handbrake built in EG: Pintara... Magna... Lancer.. Yeah Jas but the Sierra kit is made for non handbrake sierra front calipers on the back and will need the fitter to work out their front to rear bias and then fit the approtriate proportioning valve. Joeblow's Sierra kit is made to use Pintara/Skyline rear calipers with a handbrake. There was a bit of a write up in the "I made it" forum.
Wonder how available this kit is?
_________________ Lil Foot!
http://tiny.cc/gtsw1
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Thu Feb 17, 2011 11:45 pm |
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JrZook wrote: I only got a year ~12000k's outta rear shoes doing mainly road work and very minimal offroad wheel deep muddy crap. Shoes were only a few mm from their backing. Wonder if this wear has something to do with the quality of some aftermarket shoes? Sidenote: That bloody auto adjuster is a joke. It doesn't seem to auto do much anything! Unless all the aftermarket shoes have got the slots cut to big for the adjuster, the adjuster itself is going to need some modifications Dan
Yeah I reckon the aftermarket shoes are crap, when I got my vit the rears were a bit shady looking and still original so it was a better do that one day job, 100,000km later  they got done and were still legal, aftermarket ones seem to go 12 months and are stuffed
and yeah that hole needs to be spot on in size, if you cant get a good set welding it up a bit works well 
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