it's a bit too aggressive for normal driving i suppose, but i think if you really really know how to drive, you can probably still get more out of it

though with the gs300 rear end, maybe the top end will now be around 125mph?

 

that's awesome! can't wait to hear about your feedback

for the oil, i used redline 75w90, and most people here put in synthetic too i believe

 

$235.00 is a good price for the install.

As far as oil goes, I used Toyota LSD differential oil. The same oil used in a TT Supra differential from the factory. The service tech recommneded this and that was good enough for me!

 

I used Mobil-1 synthetic gear oil 75W90 I believe.

 

Thanks guys for all the input. Sounds like mobile 1, Redline (no additive) or Toyota gear oil will all work fine.
One last ouestion, do I need 2 or 3 qts for the RMM 3.76. (Blair at RMM couldn't remember)

 

man they don't have a lot of cars to "remember" on already right?

2 qt, i have changed the diff oil on my car couple of times, always a bit less than 2 qts

 

Thanks for the info. By the way, I ended up getting Mobil 1 at $8.00 per qt. for the lsd. Redline's not available around here and the local Toyota dealer wanted $50.00 per litre. Is Toyota LSD oil that expensive or is the dealer trying to pull a fast one?

 

Rheiy, you sure you looked hard enough and in all the right places? I doubt you will find Redline products at your local Lexus or Toyota dealership. You are from NC which is smack in the NASCAR belt. Tons of racing fanatics in the NC area. You need to go to a speed shop and ask them for it. That would be your best bet. I will be in NC this weekend maybe I can bring you some

 

for me i had to go to some racing relevant stores to get the redline oil too, normal shops they don't have it.

 

Yeah, the local Toyota dealer is definitely ripping you off. I paid about $8.00 per qt for the LSD oil at my local Lexus/Toyota dealer.

 

wait i just read the part about the oil at dealership. 50 bucks per litre?! you gotta be kidding me... what is it made of @_@ i kinda wonder if they looked at the wrong price.....

 

I'm wondering myself...when the parts guy said 50 per litre, I said "Fifty as in Five Zero" and he said "that's the price...50 dollars per litre". I said "Thanks but no Thanks - Goodbye" I'll just stick with my 8 dollar per qt mobil 1.

 

I check with the larger parts stores like Pep Boys, Advance, Autozone and Procare. I'm sure there's some one out there with redline but I didn't want to start going through the phone book calling every shop in town. I did get Mobil 1 from one of the Advance stores. I appreciate the offer of redline, but for now I'll try the Mobil 1. Thanks again!

 

Got my 3.76 lsd installed today. All I can say is wow! The first thing I noticed is that shifts from
1st to 2nd and 2nd to 3rd go all the way to (but not past) redline. Previously, my car shifted just shy of 6,000. Now it's just a hair before redline - perfect - no bounce against the rev limiter.
I also noticed that at 80mph the tac's at 3,000 - w/o the lsd, it was at 2800 at 80 mph. For what it's worth, at 2800 rpm, the spedo showed 75. Not a bad trade off for a little extra power. I watched the Lexus Tech install the unit and I'm glad I didn't try it myself. With the right tools including a lift to jack up that 100lb unit into place, the install went very smooth. Tech said it fit like a "glove". He was also impressed when it took it for a test drive. 1st words out of his mouth were "ITS FAST" - You Wanted Fast and You Got It". Anyway, thanks to all you CL members out there who helped me with all my questions.

 

hey congratulations again on the rear end! glad you are loving it so now you feel that the car is a bit lighter and it revs quite a bit faster huh? it's such a nice feeling

oh and it's kinda cold and icy over there in NC, careful