Hilux 4x4 import diff conversion

Discuss modifications on your 1979 to late 1998 SFA 4x4 Hilux here.
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minwaz
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Sun Jun 02, 2019 8:51 pm

Good evening I would.like to replace the local diff with an in import diff I believe that I would have to change the handbrake cables..was wondering if there was anything else I would need to replace..please advise


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Mud Dog
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Sun Jun 02, 2019 10:39 pm

Just wondering why you want to do the swop?
When your road comes to an end ...... you need a HILUX!.

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minwaz
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Sun Jun 02, 2019 10:49 pm

Good evening I belive that the import diff is much more reliable and has thicker side shafts..( Hilux Sfa forum) compared to the local gearmax diff..

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Mon Jun 03, 2019 5:01 am

minwaz wrote:
Sun Jun 02, 2019 10:49 pm
Good evening I belive that the import diff is much more reliable and has thicker side shafts..( Hilux Sfa forum) compared to the local gearmax diff..

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Jip the side safts of the import diff is much stronger than the local diff. Local has 27 splines on the sideshaft while the import has 32.
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Mud Dog
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Vehicle: '90 SFA Hilux DC 4X4, Full OME, 110mm lift. Brospeed branch, 50mm ss freeflow exhaust. 30 x 9.5 Discoverer S/T's on Viper mags. L/R tank. (AWOL) '98 LTD 2.4 SFA, dual battery system. Dobinson suspension, LR tanks, 31" BF mud's.
Real Name: Andy
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Mon Jun 03, 2019 9:42 am

Yes, not only the side shafts are stronger, but the diff itself as well. However my question still remains .... why do you want to change over?

The local diff is more than capable of handling everyday general use. The benefit of the import diff only comes into play when you are going to put excessive load on the drive train, so why go through all the trouble and expense ...... your vehicle is a 2x4 so it's not going to see extreme off-road use .... are you using it for drag racing? Bigger motor? what? ......
When your road comes to an end ...... you need a HILUX!.

Image
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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!
minwaz
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Posts: 32
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Mon Jun 03, 2019 12:22 pm

Good day
My Vehicle is a 4x4 I would be doing a bit off Roading later with bigger tyres ..I have spent R8500 to sort out the centre portion and two bearings then another R3000 for the left side shaft then the right handside shaft needs replacing that's another R3000 so wondering what next..

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Mud Dog
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Joined: Tue Apr 29, 2008 2:18 am
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Vehicle: '90 SFA Hilux DC 4X4, Full OME, 110mm lift. Brospeed branch, 50mm ss freeflow exhaust. 30 x 9.5 Discoverer S/T's on Viper mags. L/R tank. (AWOL) '98 LTD 2.4 SFA, dual battery system. Dobinson suspension, LR tanks, 31" BF mud's.
Real Name: Andy
Club VHF Licence: HC103

Mon Jun 03, 2019 5:33 pm

OK. Sorry I misunderstood / was under the impression that we were talking about a 2x4 here.

Anyway, strange that you're having these problems ... I have a local diff on one of my SFA's (the red one in my signature pics) and it's done about 220,000 km's with a lot of off road and some of it quite rough without any sign of a problem. You've now spent quite a bit of moola and basically you have replaced / sorted everything ..... could be that now it's going to last and you want to replace it.

The other thing to consider is that if you want to fit a diff lock at a later stage, it's easy and not too expensive on the local diff whereas on the import diff you're going to cough in the region of R25K to do it properly. The nice thing about a diff lock is that although it's not something that you would use all the time, besides cross-axle obstacles when you need traction it's there and it spreads the strain across both ½ shafts, so less chance of breaking something.

Back to your original question, pinion flange sizes and PCD should be the same, so no problem there and I don't think you will need to change anything with the handbrake either. You'll obviously need to set it up / adjust it with the "new" drums but otherwise everything is the same with both axles.
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!
minwaz
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Posts: 32
Joined: Thu May 18, 2017 10:18 pm
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Real Name: minesh

Mon Jun 03, 2019 6:56 pm

Thanks very much for your assistance have a blessed evening

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