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To those that have an A/T and 4.0L

Mil1ion

Still Da Man
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
 

Austin

FTF's #1 Knob Polisher
10,350
297
Cumming, GA
Running with OD on - 60mph @ 2700; 70 mph @ 3100

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

Mil1ion

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

No wonder people complain about fuel mileage on these things.
 

john112deere

caffeine junkie
Staff member
10,807
406
central Vermont
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

86
0
explorer 235/75/r15 3.73 ratio i run about 1900 at 55mph
 

5.0Flareside

GingaNinja
14,464
384
La Vergne, TN
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....
 

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