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SJ40 1.0 front disc brake upgrade/conversion.
http://auszookers.com/forum/viewtopic.php?f=5&t=36669
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Author:  shaunosj40t [ Fri Oct 26, 2012 2:09 pm ]
Post subject:  SJ40 1.0 front disc brake upgrade/conversion.

Hi all what is needed or what do I have to do to install a disk brake conversion in the front of my 81 modle sj40t ute what are the components involved and how do U do it ECT sorry still new to this sort of stuff
Cheers Shaun

Author:  zukmeista [ Fri Oct 26, 2012 2:17 pm ]
Post subject:  Re: disc brake conversion

Buy a pair of complete front hubs from a 1.3L sierra, everything that goes on the end of the diff housing except for axle/c.v.

Author:  mrw82 [ Fri Oct 26, 2012 2:33 pm ]
Post subject:  Re: disc brake conversion

you may also need a master cylinder from a later model 1 litre (or 1.3 if you want to add a booster). the drum front run a different master cylinder to disk front, and the proportioning may be different. but I can't say for certain, it may infact work ok for you.
you may get away with just removing the residual pressure valve from the front lines (assuming it has one fitted being drum brakes)

I see your in D'bay too, if yuo want to pop around to have a look at my zook to compare the differences shoot me a PM.

Mark.

Author:  303zuke [ Sat Oct 27, 2012 12:50 am ]
Post subject:  Re: disc brake conversion

zukmeista wrote:
Buy a pair of complete front hubs from a 1.3L sierra, everything that goes on the end of the diff housing except for axle/c.v.

And if the donor vehicle is a NT 1.3, then the Axles/CVs will also swap over for a strength upgrade.

Author:  shaunosj40t [ Sat Oct 27, 2012 8:31 am ]
Post subject:  Re: disc brake conversion

Ok thanks guys

Author:  Benchai [ Sat Oct 27, 2012 3:26 pm ]
Post subject:  Re: SJ40 1.0 front disc brake upgrade/conversion.

I didn't change the master cylinder when I did mine, until I upgraded to booster. All worked fine, and mine is an early sierra.

Author:  AJB [ Tue May 02, 2023 10:09 pm ]
Post subject:  Re: SJ40 1.0 front disc brake upgrade/conversion.

I've located a disk front end to do this, but need a new master cylinder as mine is worn out. There are dozens of master cylinders for sale online, but I can't work out which one to order as none of them specify for the disk brake version. Does anyone have a link to the right one to buy?

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