I have a 2005 TJ Sport with 3.73 stock gears and 32" tires. Which actually measure 31.5".
6 Speed Manual Transmission
I might go to 33s one day but Im quite happy on my 32s for now.
I'm looking at regearing to 4.56 or 4.88 but my highway RPMs at 75mph would be 3000 (4.56) or 3300 (4.88) according to the Grimm Jeep Calculator.
Its not my daily driver but I do have to drive 1-3 hours on the highway to get into the deserts where I take her on offroad trips.
My question is "What is the maximum safe RPM for the 4.0L engine to be running at extended periods for (1-3 hours)"
3000 RPM feels a bit high for extended periods of time but I've heard the 4.0L loves high revving but I'm not sure if that's for extended periods of time given how heavy she is and the heat that would be produced at those RPMs for a long period of time.
Your opinions would be much appreciated. Thanks.
6 Speed Manual Transmission
I might go to 33s one day but Im quite happy on my 32s for now.
I'm looking at regearing to 4.56 or 4.88 but my highway RPMs at 75mph would be 3000 (4.56) or 3300 (4.88) according to the Grimm Jeep Calculator.
Its not my daily driver but I do have to drive 1-3 hours on the highway to get into the deserts where I take her on offroad trips.
My question is "What is the maximum safe RPM for the 4.0L engine to be running at extended periods for (1-3 hours)"
3000 RPM feels a bit high for extended periods of time but I've heard the 4.0L loves high revving but I'm not sure if that's for extended periods of time given how heavy she is and the heat that would be produced at those RPMs for a long period of time.
Your opinions would be much appreciated. Thanks.