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jayHK69 Offline
#1 Posted : Monday, 17 November 2008 3:55:49 PM(UTC)
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converting my HK to 4 wheel disc using HQ front & WB disc brake diff.
i need disc/disc master cylinder & proportioning valve, is there
anything else i need ?

jayson
HK1837 Offline
#2 Posted : Monday, 17 November 2008 4:23:09 PM(UTC)
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You can also use a disc drum master cylinder and modify it. Or rebuild your booster using the front bit off a late UC and run a Commodore master cylinder.

How are you managing to shorten the diff housing and axles?

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jayHK69 Offline
#3 Posted : Monday, 17 November 2008 4:33:16 PM(UTC)
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ther`s only 25mm difference between HK & WB diffs which i am getting around with different back space on my wheels. to shorten by 25mm was going to cost over $1500.

thanks for your reply
HK1837 Offline
#4 Posted : Monday, 17 November 2008 10:19:04 PM(UTC)
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If that is the case you could also try a VB-VK 5 litre diff which is about the same amount narrower. Youd just have to redrill the stud pattern or run Commodore front stud pattern.

Ive also been toying with upgraded brakes for my HK GTS. With the 427 i
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#5 Posted : Monday, 17 November 2008 11:34:33 PM(UTC)
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Have just completed the vb diff conversion into HT easier than most jobs although I havent figured out how to lengthen the hand brake cable.Is there one that goes close?
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#6 Posted : Tuesday, 18 November 2008 9:08:40 PM(UTC)
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The VN handbrake cable is longer than the VB one.
Cheers.
jayHK69 Offline
#7 Posted : Thursday, 20 November 2008 4:09:38 AM(UTC)
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the vb-vk v8 diff is a good idea (that i didn`t think of) but i only recently bought the wb one so that will have to do me. do you know of anydramas settingup the hand brake etc ?

jayson
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#8 Posted : Thursday, 20 November 2008 5:37:45 AM(UTC)
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Sorry Jay don,t know the configration of WB diff but VB is basically the same as HT where the cable attaches to the transmission crossmember. The only problem is VB cable is a bit short.
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#9 Posted : Thursday, 20 November 2008 5:55:29 AM(UTC)
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Check clearance of WB calipers and handbrake brackets to HT leaf springs. Disc brake diffs wont fit into HQ-WB commercials for this reason. Commodore will work as they have integral handbrake drum.

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