dustin9779

Will i feel much of a difference on changing it to a 3.73?

andyman7931

you should notice it, but if you have an overdrive transmission, you may enjoy going bigger than that... I'd do 4.10 if I didn't have a c6.

DixieDarkhorse

you'll notice 3.73's and if you want alittle more you can also go 3.90. i think 4.10 would be alittle much in my opinion

andyman7931

It all depends on what you want to do with your truck. Do you tow or haul much? You'd want more revs that way. The 351 is in its happy place at 3000 rpm on the torque curve, so that's where I try to be when I pull my trailer. For me to be able to do 65 with my c6 (1:1 top gear ratio) I have 3.73 gears. If you're not using the truck to carry weight, this comes at the expense of fuel economy.

Look at your current revs at highway speeds. With a 3.73 gear you'll be 5% higher, with 4.10 you'll be 15% higher.