Quick gear and auto question.

paintballpyro1

Active Member

Jan 6, 2004

118

1

29

Michigan

Sep 12, 2008

#1

• Sep 12, 2008

• #1

I have a 96 gt with the auto trans. Im looking at buying a whole rear-end with 4:10 gears(ford motor sports) w/ rear girdle for $300 hasnt been driven on. 1st does that sound like a good deal? Also i was reading that it will/can cause damage to the trans which i cannot afford to roast another one. Will a speed cal fix that problem(know it fixes speed/odo)

 

04YELLOWGT

Active Member

Jun 29, 2005

1,135

2

39

Indiana

Sep 12, 2008

#2

• Sep 12, 2008

• #2

Are you talking axles and all? If so I would be careful because that is too cheap.

Also it won't hurt your trans it will just throw off your speedo. A speed cal doesn't work for an auto you will need to get an SCT Tuner.

 

paintballpyro1

Active Member

Jan 6, 2004

118

1

29

Michigan

Sep 13, 2008

#3

• Sep 13, 2008

• #3

Yea it is complete minus brakes. He said gear were 200, girdle was 200 and the carrier was close to 400. It looked like it was a project car and just funds ran out and now he is parting out. I asked about it alittle more so we will see what he says.

Anyway yea i was reading by changing the gears it changes the shift points and can damage it. I have been looking at the sniper special force, would that work for the gears and shift points?

 

Flghtmstr1

Member

Mar 31, 2005

572

4

19

Springfield, PA

Sep 13, 2008

#4

• Sep 13, 2008

• #4

The shift points don't change; they are RPM-triggered not MPH triggered. I drove my car after getting gears put in without a tune to compensate, and it shifted the same. The only difference was that my speedo read high.

 

paintballpyro1

Active Member

Jan 6, 2004

118

1

29

Michigan

Sep 13, 2008

#5

• Sep 13, 2008

• #5

Well i ended up getting the sniper tuner anyways cause you do a couple other things that i have on my car. Should i raise the rpms that it shifts at with the new gears or just leave it?

 

04YELLOWGT

Active Member

Jun 29, 2005

1,135

2

39

Indiana

Sep 13, 2008

#6

• Sep 13, 2008

• #6

Leave it. Just change the gear ratio to 4.10s to get your speedo correct.

 

paintballpyro1

Active Member

Jan 6, 2004

118

1

29

Michigan

Sep 13, 2008

#7

• Sep 13, 2008

• #7

sounds good then. This is really my first swap and will be first geared car. What weight fluid should i use?(i know i need friction modifier also). I kinda searched and people said 80-90, 75-90 or synthetic 70w-140. What would be best for it sense it has no miles on it. O and i cant find my haynes manual but how much does it take?