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Old 11-30-2005, 04:26 AM   #1
kkiepvvessau
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Default differential swap or not

i have n/a supra, i'm going to swap the TT motor soon. should i keep supra na differential or swap out the differential. the ratio on the TT automatic 3.769 and manual 3.133 or swap Lexus SC 98 differential with 3.266 . anyone doing it before please help ? what it involve or direct bolt up ?
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Old 11-30-2005, 02:09 PM   #2
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from what i remember the tt differential is a lot better than the na differential, and its more durable, you can use the lexus differential if you want to, i believe they are drop ins so its not gonna require a lot of modification if any
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Old 12-09-2005, 05:17 PM   #3
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Hi supraman,

The comment that you made regarding the differential being the same as the Lexus...I'm curisous to know how it is that you found that out? Are the Lexus parts better quality than the ones that are specificaly made for the supra?

I'm an Auto Mechanics studant, I'm curious to know how much of what is out there that is in fact the same stuff packaged up and sold as if it's differant.

In europe the parts for the Scoda are VW parts but half the price (they are also both owned by the same co , VW )
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Old 12-10-2005, 12:22 AM   #4
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Quote:
Originally Posted by TT Girl
Hi supraman,

The comment that you made regarding the differential being the same as the Lexus...I'm curisous to know how it is that you found that out? Are the Lexus parts better quality than the ones that are specificaly made for the supra?

I'm an Auto Mechanics studant, I'm curious to know how much of what is out there that is in fact the same stuff packaged up and sold as if it's differant.

In europe the parts for the Scoda are VW parts but half the price (they are also both owned by the same co , VW )
Well considering Lexus is toyota they are the same motors and parts as toyotas because they are the same motor company. The IS300 has the same motor as the supra which is a 2jz. The trannys are similar with better technology and so are most of the bolt on parts. Now with a diff I couldnt say for sure but I wouldnt be suprised if they were transferable.

On the other hand, get a TRD diff. My friend has a 98TT that he blew the stock diff when he down shifted. The TRD ones are bulletproof.
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Old 12-12-2005, 02:00 PM   #5
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Quote:
Originally Posted by TT Girl
Hi supraman,

The comment that you made regarding the differential being the same as the Lexus...I'm curisous to know how it is that you found that out? Are the Lexus parts better quality than the ones that are specificaly made for the supra?

I'm an Auto Mechanics studant, I'm curious to know how much of what is out there that is in fact the same stuff packaged up and sold as if it's differant.

In europe the parts for the Scoda are VW parts but half the price (they are also both owned by the same co , VW )
skilmatic is right, the motors are hte same, teh trannys are pretty much teh same wit some minor differences, as for the diff, the diff in the lexus...is300 and sc300 are the same as in teh na supra since all three cars are na in stock form, the turbo diff is a little more rugged, and lexus parts are the same as toyota parts since lexus is the high end version of toyota
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Old 12-13-2005, 02:27 AM   #6
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since lexus is the high end version of toyota
Yeah its the same basic concept as Nissan and Infinity. The 350z and the g35 use the same motor which is the VQ35.

Now I am trying to get ahold of my buddy who is a tech for toyota and see if he knows anythign on the possible diff swap between the alteeza and the supra.

IMO I think the teething is different because of the fact they use different sized drive shafts which i think have different size teeth by 3/16. However, I am prolly wrong. Thats just what I am assuming.
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Old 12-15-2005, 12:04 AM   #7
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i think the best set up is used the supra auto TT differential. the ratio on the Auto tt LSD, it will launch faster than the manual LSD. my friend tried the GS300 differential, It fix perfectly but lack top end. the 93-98 SC300/400 suspension parts are mostly the same but i'm not sure about the Differential bolts. The IS300 is different set up and the ratio is suck.
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Old 12-15-2005, 01:07 AM   #8
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Quote:
Originally Posted by kkiepvvessau
i think the best set up is used the supra auto TT differential. the ratio on the Auto tt LSD, it will launch faster than the manual LSD. my friend tried the GS300 differential, It fix perfectly but lack top end. the 93-98 SC300/400 suspension parts are mostly the same but i'm not sure about the Differential bolts. The IS300 is different set up and the ratio is suck.
Well your diff has nothing to do with top end capabilites. That would be the type of gears you have in your tranny. All the diff does is make wheels turn thats all. It takes whatever torque/power the tranny makes via the engine and is transfers that power to the ground. So your whole concpet there is a little misguiding IMO.

And I dont know how the IS300 is a different setup cause its the same motor and tranny as the supra it just has a little better technology than a 93-97 vehicle. If anything the IS300 should be better cause its like almost 10yrs newer therefore newer and better technology is involved in that car. Is this making sense?
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Old 12-18-2005, 04:38 AM   #9
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Quote:
Originally Posted by SKILMATIC
Well your diff has nothing to do with top end capabilites. That would be the type of gears you have in your tranny. All the diff does is make wheels turn thats all. It takes whatever torque/power the tranny makes via the engine and is transfers that power to the ground. So your whole concpet there is a little misguiding IMO.

And I dont know how the IS300 is a different setup cause its the same motor and tranny as the supra it just has a little better technology than a 93-97 vehicle. If anything the IS300 should be better cause its like almost 10yrs newer therefore newer and better technology is involved in that car. Is this making sense?
due, you know what you talking about?
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Old 12-18-2005, 08:17 PM   #10
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Quote:
Originally Posted by kkiepvvessau
due, you know what you talking about?
well sometimes i do sometimes i dont. However, I am going to be fair about this. I am going to tell you the same thing I tell everyone who doesnt agree with me.

Please if you can refute anything I say by posting a link with facts to back your side up then I will gladly admit I was wrong. I did this to another guy on the supra or bmw thread and I have yet to hear from him. So now the balls in your court.
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