How high are your RPMs at 70mph?
07-25-2007, 10:32 PM
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How high are your RPMs at 70mph?
When I was driving home today I noticed my RPMs seemed higher than usual when cruising at 70 MPH. I way at about 1800 RPMs, and the motor didnt sound like it was cruising it seemed like it needed to shift into another gear or somthing. So what is your RPMs at when cruising at 70? Oh and I have a 99' Cummins with a 4 speed automatic tranny.
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07-26-2007, 10:34 AM
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3.54's here ... and a 6 speed. Mine's right at 2,100 to 2,125 rpm at 70 mph in 6th gear. It's hard to say the rpm, because the tick mark intervals are stupid. 2,000 - 2,125 - 2,250 - 2,375 - 2,500 Instead of even 100 rpm increments! At least that's how it is on 2nd gen trucks.
mine is around 2100RPM at 70mp/h...I too have te 3.55 Gears.
07-26-2007, 06:49 PM
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I'm at about the same RPMs as you wrangler04, but it doesn't sound like it needs to shift. Sounds normal, like its just truck'n along.
Off Topic, but whats the deal with the 3.54s? Did dodge offer 3.54s as well as 3.55s? I've got 3.55s(although i really wish I had 4.10 atleast) in mine and I haven't ever heard of 3.54s until I started coming on here and the Diesel section on DT. I was a previous 1500 owner and never saw 3.54s talked about even once.
Off Topic, but whats the deal with the 3.54s? Did dodge offer 3.54s as well as 3.55s? I've got 3.55s(although i really wish I had 4.10 atleast) in mine and I haven't ever heard of 3.54s until I started coming on here and the Diesel section on DT. I was a previous 1500 owner and never saw 3.54s talked about even once.
