what RPM 's are you guys doing on the highway?

[hangnail]

I feel like my truck might be geared lower. At 70 mph I'm pulling aboyut 2100-2200 rpms, but it feels like i should be at about 1800 for that speed.

[stroken04]

I am running 3.73's and at 70 im running around 2000

[Snowman66]

I'm 67-68 mph at 2000 rpm, I have 3.73

[smitty16s]

2 grand at 70 with the 3.73, im gonna guess you have the 3.73's but might have a little outta sync tach...its not problem.

[Snowman66]

Auto or 6sp, does it make a difference?

For me, I'm automatic.

[Yoslick]

4.10's and 64 mph @ 2000 rpm

Slick!

[sldghamr]

Originally Posted by Yoslick

4.10's and 64 mph @ 2000 rpm

Slick!

that is my setup as well.

[monte psd]

4.10s 80mph at 2200-2300

[ford99PSD]

Originally Posted by Snowman66

Auto or 6sp, does it make a difference?

For me, I'm automatic.

aparently not i got the 6spd 3.73's and im at 2000-2100 at 70

[hangnail]

its auto, stock tires, but i think when i go up to 33's it might help a little.

is it me or does it just feel like if there was an extra overdrive, the truck would just idle at 80.

but it sounds like I have the 3:73's as well