sucess...second IS250 with IS300 Torsen LSD - Page 2 - Club Lexus Forums


sucess...second IS250 with IS300 Torsen LSD

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Old 04-11-12, 03:21 PM   #16
Gville350
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For those looking at doing this upgrade, what would they be looking to spend on just the entire diff w/ LSD?
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Old 04-11-12, 03:31 PM   #17
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Depending on where you find it between about $450-700 is about normal.

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Old 04-11-12, 07:50 PM   #18
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Depending on where you find it between about $450-700 is about normal.

Jeff
Also add labor if you cant do the work yourself. On a scale from 1-10 if youre mechanicaly inclined would be a 3 on a lift and about a 5 to do it on jackstands.

My buddy and I spent 2 hours doing the swap and that included talking BS with each other and stoping when a customer walked in.

GVile350: please look at jeffs thread that I posted on thr first page. He goes into details for this swap and it will not work on an IS250.
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Old 04-12-12, 06:53 AM   #19
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GVile350: please look at jeffs thread that I posted on thr first page. He goes into details for this swap and it will not work on an IS350.
Fixed that for ya
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Old 04-12-12, 08:21 AM   #20
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Fixed that for ya
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Old 04-12-12, 06:29 PM   #21
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^Yeah, I already knew that...kinda sucks cuz I'd have to spend either a grand on a Quaife, 2 grand on a OS Giken LSD, or cross fingers that a used '10+ ISF Torsen works in a 350 rear end. I still wanna be the first with a ISF LSD...just near impossible to find a junked '10+ ISF pumpkin though.
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Old 04-13-12, 10:48 PM   #22
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good chet bish!

got the lights working?
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Old 03-29-14, 03:52 AM   #23
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I got a small confusion.... Which part measures 205mm on the IS250 and 208mm on the IS350?
I have been researching a lot on these cars and I wanted to buy an IS250 and had most of the mods I wanted in mind, but reading some of this forum's threads have me nearly convinced to go for an IS350 instead. But now I have this LSD confusion... What is do different about these two differentials and what would be a possible option to get the Torsen LSD from an IS300 in a 350?
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Old 03-29-14, 08:23 AM   #24
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The ring gear is 205mm versus 208mm, it is internal to the differential case. The case itself has different mounting points, a different style of pinion flange and different axle lengths. If you wanted to use an IS250 differential in your IS350, you'd need to swap out the subframe, get a custom driveshaft and swap out the axles for IS250 ones.

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