C cbush314 New member Joined Nov 12, 2012 Messages 41 Reaction score 0 Points 0 Location Michigan Nov 12, 2012 #1 I have a 01' XJ with the 4.0 and Aisin Auto 4 speed. If I have 3.55 rear gears, then what kind of RPMs would I run at 70 MPH?
I have a 01' XJ with the 4.0 and Aisin Auto 4 speed. If I have 3.55 rear gears, then what kind of RPMs would I run at 70 MPH?
4btjeep New member Joined Oct 29, 2012 Messages 92 Reaction score 0 Points 0 Nov 13, 2012 #2 I am not sure if i had the same config but i was about 1800 at 70mph in my 98
C cbush314 New member Joined Nov 12, 2012 Messages 41 Reaction score 0 Points 0 Location Michigan Nov 13, 2012 #3 Im right at about 2k so I would assume they are 355s
