Hello All,
Yesterday I found out my rear is blown, and that was after installing new axles and bearings on Tuesday. NowI have to get thewhole rear done soI thought it would be a proper to have new gears installed. I have searched all day and still have notfoundanythinghelpful, so here's my question:

My car is a DD with 105,000 babied miles on it and it's an auto. I drive about 25 miles to work each day, and put about 100 miles on it during the weekend (70mph cruising). My car has 18" rims too. What would better suit me, 3.73 or 3.90 gears?

 

3.73

 

I agree with 3.73's.

 

3.73 for highway driving.

 

You're not going to notice the difference on the hwy between the 3.73's & 3.90's. I have 4.10's and when i worked in Waco, i drove 50 miles round trip and had no problems.If you're choosing between the two, I'd say 3.90's.

 

That's what I've been reading. I have heard that you can tell the difference between the two, but not much on the RPMs.
Anyone with 3.90 gears? any feedback would help!

 

I have had 3:90s for about as long as i owned the car and i am glad i got them but also 4:10s would of probably been just as good a choice.most will go with 4:10s.

 

The difference between373s and 3 90s on the highway is about 1-200 rpms. So either will be fine.

 

4:10s!!!!!!!!!!!!!!!

 

3.90s should work out fine for you. honestly not that big of a difference in the accleration OR final gearing really.