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Gears recommendations for my 1990 5.0 Automatic?

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Old 02-18-2007, 08:48 PM
  #11  
junknotch
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Default RE: Gears recommendations for my 1990 5.0 Automatic?

I had 3.73's in my 88 with a auto and everyone told me how the car would wake up and it did, but I really wished I went with 4.10's and will this time with my new project
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Old 02-18-2007, 10:09 PM
  #12  
PJB
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Default RE: Gears for my 1990 5.0 Automatic?

ORIGINAL: 2 kwik

and if you didn't put a trans cooler in the carfor the heat and you most likely have cut the transmission's life by 25-35%
I havent put one in yet but Im thinking about doing it in the spring. Just one of the generic parts store ones should be fine, right?
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Old 02-18-2007, 10:14 PM
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Goosepoop302
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Default RE: Gears for my 1990 5.0 Automatic?

4.10s.....again
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Old 02-18-2007, 10:21 PM
  #14  
2 kwik
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Default RE: Gears for my 1990 5.0 Automatic?

I use the plate type but using the tube type from HAYDEN#1405 will work great this is one of those bigger is better
ORIGINAL: PJB

ORIGINAL: 2 kwik

and if you didn't put a trans cooler in the carfor the heat and you most likely have cut the transmission's life by 25-35%
I havent put one in yet but Im thinking about doing it in the spring. Just one of the generic parts store ones should be fine, right?
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Old 02-18-2007, 10:30 PM
  #15  
95hooptey
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Default RE: Gears for my 1990 5.0 Automatic?

4.10s....................nothing less.........trust me.
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Old 02-19-2007, 12:49 AM
  #16  
76stangalang87
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Default RE: Gears for my 1990 5.0 Automatic?

+1 on the 4.10's had them in my 94 V6 autohaha
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Old 02-20-2007, 02:41 AM
  #17  
89GTRagtop
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Default RE: Gears for my 1990 5.0 Automatic?

I prefer 3.73's as a better all around gear, especially if you plan to boost or juice down the road.
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Old 02-20-2007, 03:03 AM
  #18  
notchbackmatt87
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Default RE: Gears for my 1990 5.0 Automatic?

373s hands down i got em in my 88 love em
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Old 02-20-2007, 01:38 PM
  #19  
2 kwik
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Default RE: Gears for my 1990 5.0 Automatic?

anyone have 10,000+ miles on thier 4.10 in an automatic and had no trans problems?
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Old 02-20-2007, 04:33 PM
  #20  
1bad91
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Default RE: Gears for my 1990 5.0 Automatic?

Go 4.10's I had 3.73's in my 91 auto then switched to 4.10's. It made a big difference.
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