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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

A Few Questions

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Old May 31, 2007 | 09:07 AM
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Hi all. I have been a member for some time and i have owned a few Lexus models but i recently bought one that i am having a few questions about. It is a 99 GS4 and it was modded when i bought it. I have a few questions about some of the maintenance on some of the items. It has a Rod Millen rear end in it the previous owner said that it he purchased the entire pumpkin from them but does not remember what gear is in it. The car does have LSD but i want to know what fluid is recommended to replace it with. He said he used synthetic but of course didn't state which one. Any ideas? The other question is that the car came with the Supra TT brake upgrade. Which now renders my factory 17's useless. Can i use LS wheels? I don't want to change the studsor run a spacer, what are my other options? The car currently has 19's on it now. Last question, when doing the Supra TT upgrade are the rotors upgraded to Supra rotors also? thanks for any help anyone can give.
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Old Jun 1, 2007 | 11:59 AM
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does anyone know? Any suggestions??
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Old Jun 1, 2007 | 05:03 PM
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i don't know if the RMM lsd is clutch type or another type of lsd, so for the safes way would be call RMM and ask what they recomend. TT brakes, yes rotors are supra tt. LS wheels will clear BBK if you don't want to ad spacers to stock gs 17" wheels. hope this anwsered all your questions and please don't forget to use the search funtion, that way you won't have to wait for someone to respond.
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Old Jun 3, 2007 | 07:12 AM
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Thank you for all of your assistance
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