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  #16  
Old 02-01-2011, 04:03 PM
Badb3000 Badb3000 is offline
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Default Re: 3k rpms at 70MPH?

Quote:
Originally Posted by daniel5625 View Post
can 4.10 gears come stock on the truck?
If you look in your truck manual, or the small metal tag that is on your rear differential it has your gear ratio on there.
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  #17  
Old 02-01-2011, 08:27 PM
daniel5625 daniel5625 is offline
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Default Re: 3k rpms at 70MPH?

Quote:
Originally Posted by Badb3000 View Post
If you look in your truck manual, or the small metal tag that is on your rear differential it has your gear ratio on there.

i have 3.73 gears, and 20" tires, does this sound right to be running 3k at 70?
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  #18  
Old 02-01-2011, 08:31 PM
DangerRanger2000 DangerRanger2000 is offline
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Default Re: 3k rpms at 70MPH?

Do you have your overdrive off or on when your doin 70mph? I have 3.73's and when the overdrive is off it will do 3k at 70mph,
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Last edited by DangerRanger2000; 02-01-2011 at 08:36 PM.
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  #19  
Old 02-01-2011, 09:07 PM
daniel5625 daniel5625 is offline
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Default Re: 3k rpms at 70MPH?

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Originally Posted by DangerRanger2000 View Post
Do you have your overdrive off or on when your doin 70mph? I have 3.73's and when the overdrive is off it will do 3k at 70mph,
od is on when i drive, rareley turn it off.
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  #20  
Old 02-01-2011, 09:40 PM
01B3000 01B3000 is offline
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Default Re: 3k rpms at 70MPH?

Somethings not right then, check your door tag and reference the axle code to the chart here http://www.fordrangerforum.com/drive...xle-codes.html.
Its just easier to double check that you know you have the gears that you have. prevents misdiagnosis
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Last edited by 01B3000; 02-01-2011 at 09:56 PM.
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  #21  
Old 02-01-2011, 09:54 PM
daniel5625 daniel5625 is offline
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Default Re: 3k rpms at 70MPH?

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Originally Posted by 01B3000 View Post
Somethings not right then, check your door tag and reference the axle code to the chart here http://www.fordrangerforum.com/drive...xle-codes.html.

i have 3.73s with tiny 20" tires
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  #22  
Old 02-01-2011, 10:10 PM
01B3000 01B3000 is offline
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Default Re: 3k rpms at 70MPH?

if you really have 20 inch tires then thats your problem, check the stock tire size on the door tag and compare that to the tires
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  #23  
Old 02-01-2011, 10:12 PM
pooleo pooleo is offline
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Default Re: 3k rpms at 70MPH?

^^^ HOLY F*CK! 20" tires are not stock. Thats like a 165/40R15 or something. Thats your problem. As I stated above, its all about gear ratio and tire size. You need to bump up to 235's

----------

chr!st is your rear end dragging the ground...!?? lol
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  #24  
Old 02-02-2011, 08:24 AM
blueranger789 blueranger789 is offline
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Default Re: 3k rpms at 70MPH?

Quote:
Originally Posted by daniel5625 View Post
can 4.10 gears come stock on the truck?
i recently swap in 4.10 gears to replace the old 3.73 gears, on the interstate i run anywhere from 70 to 85 mph at 3k rpms
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