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i think i might have a overdrive issue

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  #1  
Old 03-28-2011, 07:53 PM
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Default i think i might have a overdrive issue
at 65 mph im around 2300 rpm 2600 at 70 mph does this sound right for a overdrive dually trans?
 
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  #2  
Old 03-28-2011, 08:10 PM
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What trans do you have. My 94 dually doesn't sound to far off from that and its a 5 speed.
 
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  #3  
Old 03-28-2011, 08:15 PM
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not sure i just got the truck its a auto with overdrive
 
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Old 03-28-2011, 08:42 PM
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Its a 4l80e. It could have real low gears to.
 
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  #5  
Old 03-28-2011, 09:29 PM
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sound about right i run right around 2400 at 70
 
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  #6  
Old 03-29-2011, 03:20 AM
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ya the 4l80 overdrive is .80 i think and you probly have 4.10s mine is a lyyle higher than that 2500 at 65 and 2800 at 70
 
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Old 03-29-2011, 08:14 AM
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ya i have 4:10s
 
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Old 03-31-2011, 02:57 PM
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is 2500 rpm ok for these motors for a long trip i dont like going over 65 sounds like its going to blow
 
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Old 03-31-2011, 04:51 PM
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2500 rpm is fine on them.
 
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Old 04-01-2011, 01:13 PM
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its just going to suck fuel
 
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