To those that have an A/T and 4.0L

[Mil1ion]

I need to hear from you regarding RPM's per speed.

With my OD actuated I am running 2200 rpm at 60 MPH

I feel this is high and would expect the rpm to be around 1800 while at a speed of 60 MPH.

I have 16" rims with P245 78-16" tires

 

[smokey]

That is about what my explorer ran rpm wise.

 

[5.0Flareside]

when im running 70 im turning bout 2900 rpms in the exploder.. not sure bout 60 mph though..

 

[Austin]

Running with OD on - 60mph @ 2700; 70 mph @ 3100

But my tranny is about to give, so my numbers are useless.

 

[Mil1ion]

IMO, That's way too high for Highway speeds.

No wonder people complain about fuel mileage on these things.

 

[john112deere]

Well...my 4.0 has a 5-gear behind it (and 3.73s- and it's not in an Explorer), but it turns somewhere in the neighborhood of 2,000 rpm at 60.

The key point thus far not touched upon here is gearing. Mom had a '94 Explorer, 4.0 and the A4LD auto trans, that had a 3.08 rear-end in it. Nice low RPMs cruising on flat ground, and pretty good highway mileage (24 at interstate speeds, if memory serves), but it would unlock the torque converter to climb an anthill.

 

[jdk]

explorer 235/75/r15 3.73 ratio i run about 1900 at 55mph

 

[5.0Flareside]

I need to hear from you regarding RPM's per speed.

With my OD actuated I am running 2200 rpm at 60 MPH

I feel this is high and would expect the rpm to be around 1800 while at a speed of 60 MPH.

I have 16" rims with P245 78-16" tires

thats dead on what our Exploder runs since i checked it today....

 

[FordF-SuperDuty]

BTW, I get about 1800 RPM at 60.