4.10 Gears

[Jmanbigd]

I have an 02 GT and i know this has probably been answered but with the 4.10 gears what rpm are you at when crusing around 70 mph in 5th gear. The reason is i do some highway driving and don't want to make my gas tank drop any quicker. Thanks for the Help

 

[CobraRed_96_GT]

for a 245/35/17 or 275/35/18 tire at 70mph in a T-45 transmission and a 4.10 gear you'll be at 2517rps while being 2290 w/ 3.73's. I forgot the calculator i used to use, so im not 100% on these. But at any rate if you "don't want to make my gas tank drop any quicker" than gears arn't for you - lol.

 

[Spro]

With 4.10's and your 3650 trans you should be at about 2400rpm's at 70mph.
Don't worry about the gas mileage. I still average 18-21 mpg with my 4.10's

 

[propellerhead]

I have 4.10s on an auto. I get 23 mpg on the highway staying 65-70 mph.

 

[FoxRod87]

The 03 GT we had got 20mpg around town with my wife driving it and 19 with me drivin and it still got 22-23 on the highway. But when it was stock 3.27 gear I can remember getting 26mpg on the higway. If I were you I would do it. You'll love them.

 

[GettinThere]

I have an 02 GT and i know this has probably been answered but with the 4.10 gears what rpm are you at when crusing around 70 mph in 5th gear. The reason is i do some highway driving and don't want to make my gas tank drop any quicker. Thanks for the Help

75 mph is about 2500 rpm.

 

[drew_shipley]

As everyone has said, with the TR-3650 in 5th I'm ~ 2,500 RPMs @ 70 mph and a tick under 3,000 RPMs @ 80 mph. I've driven the car several times from Indiana to Ohio (~7 hour total trip) and I get right at 24 mpg on the highway with them... usually traveling between 70 and 80 mph.

 

[Mossberg]

21 MPG mixed driving here.

And I drive like an azzhole.