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4.88's too much?

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Old May 23, 2008 | 06:48 PM
  #1  
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99_F250_SD
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4.88's too much?

I have a 99 f-250 Sd 5.4 5 speed manual with 35s and i am thinking about putting 4.88 gears in it, is it a little over kill?
 
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Old May 23, 2008 | 06:55 PM
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I was thing that would be a good gear ratio also !
 
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Old May 23, 2008 | 07:35 PM
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That would be about right for 38s. Running those gears with 35s will kill your hwy mileage. You should probably go with 4.30s or maybe 4.56s.
 
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Old May 23, 2008 | 07:42 PM
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It's too much for my taste, but should have great acceleration. It all depends on your typical cruise speed and how many RPMS you want to turn doing it.
 
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Old May 23, 2008 | 08:42 PM
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I did 4:88's with my F-250 with a v-10 and it was too much gear for the 35's wold have been perfect for 38's I would look at the 4:30 or 4:56, Yukon makes very good gears if you are also shopping for brand.... Good luck.
 
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Old May 24, 2008 | 11:46 AM
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It's never enough until your heart stops beating.
 
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Old May 24, 2008 | 04:15 PM
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I was running 4.88's with my 38's and now with my 41's makes a big difference with tires of that size but with smaller tires it would be a little much unless your drag racing....
 
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Old May 24, 2008 | 07:25 PM
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From: West Michigan
4:30's w/ V10 are perfect with 33's (stockers). The will be VERY good with the 305/70/18's (35", BUT a wee bit wider than stock).

If I were to go with 325/65/18's (35" and fairly wider than stock) I'd still be happy with 4:30, but may think 4:56.

That's the limit...anything larger and it's 4:56 and up!
 
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