Quote:
Originally Posted by nextcar
If you can get one out of a totaled car, great. Otherwise it can be much cheaper to change gears in your existing differential...
Note: the 2017 only went from 4.10 to 4.30, and only on the manual cars.
This small of a change is very, very subtle. I went all the way to 4.56 and I sometimes wish I had gone to 4.88 on my manual daily driven car. I personally would not think the change to 4.30 is worth the expense.
Gas milage takes a very small hit. With AC off, level freeway driving I still get 32 US MPG. Overall I average 26 mixed city/highway.
Engine turns faster, but benefits from mechanical advantage - e.g. it may actually be under less stress.
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This is what i was thinking.. 4.10 --> 4.3 isn't that big of a change. I have 4.88 and wouldn't have it any other way
for an NA car.
Best way to go is get a used diff carrier from an IS300, you can find some with an LSD already, or get a "fun" differential :p, by the gears and swap it at your own leisure taking your time with the shims. At least, this is what I did and it worked out great. I'm using the MFactory Mechanical LSD, had the innards WPC treated, fine tuned the preload and lock capacity and after the 3rd oil change I hardly have any chatter. That might be a little far from what you want to do, but DAMN is it fun!
Just my 2 cents.