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Registered:
May 2002
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MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 06:37
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I'd like opinions on the relative strength differences between these 2 diffs (apart from the extra mounting strength afforded by the Supra's 2 front mounting points - in a debate I'm having onanother forum, this would be moot anyway, as someone has mounted a MK3 diff in an MX83 carrier).
This link has pictures of the install, along with mine and others comments...
http://thermactor.com/forum/viewtopic.php?t=1558
Yes, the housings look different. But, at the end of the day, as I understand it, they both share virtually identical G-series internals (ratios notwithstanding) and thus, one wouldn't be any stonger than the other...
Opinions?
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Location:
Brisbane
Registered:
November 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 09:17
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There is no strength difference... a G-series is a G-series.
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Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 09:58
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| 7M-Brisbane wrote on Mon, 08 September 2003 19:17 |
There is no strength difference... a G-series is a G-series.
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This is as I thought...
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Location:
Brisbane Qld
Registered:
May 2002
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Location:
Brisbane
Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 12:09
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I'm pretty sure all G-series LSD's are of the 4-pinion variety (excluding the JZA70 torsens). Open centres are a different kettle of fish, but who cares about them? 
Besides, the crownwheel and pinion are the biggest factor when it comes to strength, and that's definitely the same across all G-series diffs.
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Location:
Brisbane Qld
Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 12:32
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Agreed.
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Open centres are a different kettle of fish, but who cares about them?
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Biased99 probably cares  . I mentioned the open centres as only the 91/92 Grandes had LSD as standard and as such Biased99's car is probably open centre, otherwise he wouldn't be considering a swap unless it was for the higher ratio available in the MA70.
I'm pretty sure my 89 MX83 was a G312 but that was 8 years ago and is sorta foggy now.
Cheers
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Location:
Brisbane Qld
Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 12:37
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BTW, Biased99,
I feel sorry for the boys in the US, most of them are college kids and can't stop drooling over your engine bay 
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Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 22:31
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| stevevp wrote on Mon, 08 September 2003 22:32 |
Agreed.
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Open centres are a different kettle of fish, but who cares about them?
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Biased99 probably cares . I mentioned the open centres as only the 91/92 Grandes had LSD as standard and as such Biased99's car is probably open centre, otherwise he wouldn't be considering a swap unless it was for the higher ratio available in the MA70.
I'm pretty sure my 89 MX83 was a G312 but that was 8 years ago and is sorta foggy now.
Cheers
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You are correct, in that the axle code shown on my model plate is G312.
However, I have actually had the hemisphere from an MA70 Supra swapped into my diff, making it an LSD unit. It was this approach that I was advocating in the thread referenced above, rather than doing a "bodgy" install of an entire diff from an MA70, using a piece of exhaust pipe as a spacer...I just felt that the former approach would be neater, less hassle, and probably a better option at the end of the day...
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Location:
Brisbane Qld
Registered:
May 2002
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Re: MA70/MK3 Supra and MX83 Diff comparisons...
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Mon, 08 September 2003 23:54
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I get the impression the guys on the forum over there have neither the cash or the expertise to do a changeover of the internals. Swapping over the rear cover and making a spacer was a logical option but definitely not one I would reccommend, the loading on that exhaust pipe is going to be fairly high, and the bushes were looking pretty sad on the rear of the cradle.
I'm a firm believer in do it once, do it right 
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