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Location:
Montrose, VIC
Registered:
May 2002
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Re: diff for 1jz
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Thu, 07 July 2005 09:22
 
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You have a few options. I'm guessing that from your pic, you have a VK. You have a few choices:
*Bogwarmer 4 pinion, 28 spline - don't bother with the 2 pinion, 25 spline one. You can get gears up to 4.11 for these, and I'd suggest that 3.889 or 4.11 would both work well for what you want. Word of warning though - both these gearsets tend to be noisy, although they are reasonably strong (as are the axles), and will make noise for years without doing anything other than annoying you. You then have a few LSD choices - the standard shredder (cone) type, which tends to have an appetite for parts/servicing if you want it to keep working at all, the viscous type ones, which again seem quite killable with a bit of brutality (although maybe adding an oil cooler would prolong their life?), or something aftermarket. Aftermarket options include KAAZ (not cheap, but quite good), various switchable lockers, spools, and a few others. This is obviously the easiest option.
*Nine inch - every diff shop in Australia has been doing nine inch conversions for every Holden for 40 years. There's a reasonable choice of gearsets, axle sizes, LSDs, you name it. You can also get lighter weight internals (aluminium etc.) to cut down on the weight issue somewhat. In fact, if you like to pay for it, you can probably get anything you want to suit a nine inch
*Toyota G diff - from a Hllux, Hiace, etc. - enough has been said on here about them over the years, suffice to say that there's plenty of gearsets, LSDs etc. available for them.
*Various other commercial vehicles have stuff to offer as well
There's a few ideas to get you started.
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