Sunny Truck in Japan (counterpart of 1200 ute) built after October 89 has the booster and front disc brake from the factory. However, I heard that the fire wall is slightly different between the Sunny truck with the booster and without the booster. I have heard some people modify the fire wall and fit the booster and master cylinder but I don't know how big the modification is. I am not sure but I believe the Sunny truck built before Oct 89 (L-(G)B-122) has the same firewall as 1200 ute.

if you want a mean master cylinder the one to get would be the urvan at 15/16", but i dont think its neccesary, in fact i dont think its neccesary to have a booster until you get at least 4wdiscs, so unless you are i wouldnt bother

yeah i have the sunny one, you either need to make a spacer to bring it a little more forward or cut open the hole in the firewall for it to fit, mine was cut open but then my bro-in-law said he would use a spacer next time so he didnt have to cut it, and he drilled holes to mount it too, seems to work well, i have 4wdiscs and pedal is not too heavy but has good feedback too

kegs,
I just ripped the m/cyl off the ute and checked the clutch cable placeing.
It clears the booster with plenty of room to spare.

thanks for that mate, seems like uve gone to some trouble to get me that info, hope to go down and get the brake booster in two days so if i do ill tell u how mine goes thanks again mate.

kegs, it seems that way.
I haven't done it yet but looking at & measuring it itlooks easy.
You will need to drill a few holes to mount the booster.
You may also need to move the clutch cable a touch or atleast pivot it around a bit so there is some clearance from the booster.
I hope to be doing mine in a few weeks so if you need I can advise better after hands on.

thanks datsterr, so saying this do u think the sunny setup will easily modify for a ute? seems like it would.

I have a 79 Sunny & 85 1200ute
the Sunny M/cyl is the same except that the bore is 13/16 and the ute is 11/16.
The Res for the front is also a little larger to accomodate for the Discs.

hey guys ive been down to my local wreckers today, and i was just badgin a sunny..... i mean looking around he he he, anyways i saw the sunny brake booster and it looks to me as though the resevoirs that were on it are exactly the same as mine does anyone have one they can look at to tell me for sure or any help, thanks

Im using a 180B booster on my 1200 ute and it does a pretty good job. I have Verada discs with VS Commodore calipers up front and VP discs and calipers up the back.

I believe there was also a brake bias adjuster in the early (HQ?) Holdens. Shouldnt cost more than $20.