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Voodoo 03-06-2004, 02:29 PM Ok guys since I seem to have lost my notes before my lift install, l'll ask for some help from those of you that have a bone stock 2004 4x4 with the LLY/Allison. I'm wondering what RPM's you're turning at 50 mph, or 60 mph. Thanks in advance. 04wanabemax 03-07-2004, 01:40 PM Voodo, I Just got Back from work, and here it is. 1500 RPM = 50 MPH 1625 RPM = 55 MPH 1850 RPM = 60 MPH 1975 RPM = 65 MPH 2200 RPM = 70 MPH This is the best judgement I could make as it's rather hard to tell exactly where the RPM'S are when there in between the marks, but if you do the math it makes sense. Note: the tach at 65 MPH is not fully centered on 2000 RPM'S so this is how I determined the RPM'S. Hope this helps, Fran Voodoo 03-08-2004, 09:43 PM 04wanabemax, Thank you!!!! I looked tonight and seems very close if not the same as what you gave me. Like you said it is hard to tell exactly, I just wanted to get a good idea. Thanks again I'll see at 65mph. The 37's and 4.56 gears seem to be very close to stock. 50 mph 1600 60 mph 1800 Thanks again! | ||