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  • SN95 4.6L Mustang Tech

Change gear ratios in a Auto

  • Thread starter Thread starter StratGT
  • Start date Start date Jun 29, 2005

StratGT

Founding Member
Oct 11, 2001
477
0
16
Mississauga, Canada
Jun 29, 2005
#1
  • Jun 29, 2005
  • #1
Many 6 speed cars have a good OD gear like the T56 Viper spec tranny. It has a .50 OD gear. This is great for hwy crusing. The auto in my 2000GT, a 4R70W has a .70 OD gear. With a 3.73 it revs a little high at 80mph.

Is there anyway I can change the OD gear to a .50 or something similar. Has anyone done this.
 

96WhiteNight

New Member
May 11, 2004
303
0
0
Carlisle, PA
Jun 29, 2005
#2
  • Jun 29, 2005
  • #2
I don't think you can short of actually replacing the gear inside the tranny
 
T

tjm73

Founding Member
Aug 3, 2000
2,418
2
48
Rush, NY
Jun 29, 2005
#3
  • Jun 29, 2005
  • #3
Can not be done. Not without a custom made gearset and total disassembly of the tranny. The cost and work involved would far out weight the benefit of the change and any savings you get from lower fuel consumption.

It would be easier to change to a T56 6 speed.....and possibly cheaper.
 
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