75 mph and 2400 rpm ????
#1
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75 mph and 2400 rpm ????
I just got my 06 3500 CTD with six speed, and immediately had 285 tires put on it and had the dealership recalibrate it before i ever picked it up (supposedly). My question is at around 75 mph i am pulling 2400 rpms, is that right?? Sure seems like it revs up high. The dealer told me it had a 3.73 rearend, but i can't seem to find the gear ratio on the doors or anything. Is sixth gear just fairly low?? Sure hope i didn't get 4.10's . What is everyone elses expereince with this?? I just got rid of an 03 ford 6.otoh and at 75 it only pulled about 2100 rpms, 80mph around 2250?? Just wanna make sure i didn't get 4.10's somehow, otherwise i really like the truck .
#2
That's why I bought the auto. I took the G56 6-speed out for a cruise and the RPM's were higher than I expected. That is with the 3.73's. I don't tow more than 4k most of the time, so running in the higher RPM range for more torque was not an issue.
I put a lot of Interstate miles on. In Iowa and Nebraska, that means 75-80mph which means 2400-2700 RPM's.
As a lot of people hear have said, when I got to 65mph, I was trying to find 7th...
I'm pretty sure you got 3.73's, unless 4.10's were listed on the sticker.
I put a lot of Interstate miles on. In Iowa and Nebraska, that means 75-80mph which means 2400-2700 RPM's.
As a lot of people hear have said, when I got to 65mph, I was trying to find 7th...
I'm pretty sure you got 3.73's, unless 4.10's were listed on the sticker.
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ok good, thanks for all the good info. hard to beleive these trucks can get 20mph when they are revving up that high. Hopefully i will be getting 18+ once broken in?? Thanks again, this is a great site, will post some pic. when i get some taken.
#7
Originally Posted by honda_guy4
ok good, thanks for all the good info. hard to beleive these trucks can get 20mph when they are revving up that high. Hopefully i will be getting 18+ once broken in?? Thanks again, this is a great site, will post some pic. when i get some taken.
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#8
Originally Posted by Henry F. Smith
Axle ratios are listed on the inside of your glovebox.
DC decided to save a nickel. No sticker in the glove box on 06's. At least, not on mine.
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When I see number like this I am glad to have a 305/555 and an NV5600, I get over 20mpg consistently unless I run the whole tank over 70mph. Best tank was about 22mpg.
Nick
Nick
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Something I saved:
The ratios of the new G56 are a tad lower than the 5600 as well - the
5600 number is first, then the G56:
1st - 5.63 - 6.29
2nd - 3.38 - 3.48
3rd - 2.04 - 2.10
4th - 1.39 - 1.38
5th - 1.00 - 1.00
6th - 0.73 - 0.79
Rev - 5.63 - 5.74
The ratios of the new G56 are a tad lower than the 5600 as well - the
5600 number is first, then the G56:
1st - 5.63 - 6.29
2nd - 3.38 - 3.48
3rd - 2.04 - 2.10
4th - 1.39 - 1.38
5th - 1.00 - 1.00
6th - 0.73 - 0.79
Rev - 5.63 - 5.74
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Trans
So what trans is the standard 6 speed, and which trans is the HD one? I know when I bought mine (went auto) but they had standard and heavy duty? Sure seems the G56 is harder to get parts for ect. Just currious.