5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

390 Gears

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Old Jan 4, 2005 | 01:50 AM
  #1  
91GTFox111's Avatar
91GTFox111
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From: Da Ghetto son
Default 390 Gears

How come i never hear people talkign about 390's but i hear that they make them ... How are they compared to 373's
Old Jan 4, 2005 | 01:51 AM
  #2  
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nemethjames1
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Default RE: 390 Gears

well there a little bit lower LOL... people dont talk about em much coz its not very common, but i was going to go 3.90's but i found that 3.73's were a bit cheaper
Old Jan 4, 2005 | 01:59 AM
  #3  
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Default RE: 390 Gears

yeah im just going to go with 373's
Old Jan 4, 2005 | 02:11 AM
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Default RE: 390 Gears

Just go 4.10
Old Jan 4, 2005 | 02:25 AM
  #5  
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Dan89lx
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Default RE: 390 Gears

3.90 sounds good to me. I have 4.10's but a little higher wouldn't hurt anything.
Old Jan 4, 2005 | 05:51 AM
  #6  
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nemethjames1
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Default RE: 390 Gears

might as well go 410's if your goin that far, i got 373s and hate myself for not goin 410s
Old Jan 4, 2005 | 12:46 PM
  #7  
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Default RE: 390 Gears

it's a good compremise...the 3.90 hasn't been out but a few years for the 8.8
Old Jan 4, 2005 | 02:40 PM
  #8  
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roundman
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Default RE: 390 Gears

I would have gotten 3.90's instead of 3.73's but they weren't available for the 8.8 rear when I changed mine out because I think the 4.10's are too low a gear for the street.
Old Jan 4, 2005 | 02:57 PM
  #9  
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Default RE: 390 Gears

3.90's aren't available from FMS and FMS is the gear of choice for gear swaps. You can get 3.90's from other companies though.
Old Jan 4, 2005 | 03:01 PM
  #10  
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Default RE: 390 Gears

390s can be useful depending on your combo. they been around for years but only a short period of time for the 8.8. other companies make them. i think richmond is one of htem



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