I have a 93 manual w/133,XXX miles.So my bearing in my diff(driver side)has some play in it which explains why I've had a rough ride the last few months which is getting worse.So a few questions

1.Should I just salvage it and replace the bearing or is that a risk?
2.What diff should I get between SC300-400 and LS400?
3.Does the lower gear ratio make much of a difference mileage wise?

Thanks

 

The lower the ring gear ratio, the better mpg.
Higher ratio is faster acceleration

 

get a 92-97 sc400 diff.

 

That's the 3.92 right?Did you notice much of a difference in mpg?

 

Manual is 4.08, moving to 3.92 is a little better, it shouldn't hurt acceleration too much.

You may want to look into auto TT since it's 3.73

 

I would but,I just can't afford it I just recently got married