Will a 2001 is300 rear diff (entire pumpkin) fit on a 2001 gs430? Does anyone know what the ratio is on the is300 diff?

 

Don't know, but I heard of someone installing the gs3 rear diff on a gs4. The ratio is arround 3.9x

 

i have actually got a hookup a couple of my friends are from thailand and parts there are verycheap and have low miles me and my friend who has a is300 are both getting Supra TT rear ends for very cheap... so that'll have 3.76 gearing and LSD i really cant wait.. the only killer is the shipping... so in conclusion and is300 pumpkin should fit.... i migh tbe able to help ppl out onhere on getting Supra rear ends..

 

Well - I can't find a supra torsen 3.76 lsd for my gs430. Why don't you look into if you can find/get them and post back the details/price/etc. I'm sure I'm not the only one who'd be interested if you can find them at a good price.

 

i will get all the info u need within the next couple weeks