430 Gear for 99 GT

9

99StanGT

New Member

Apr 2, 2003

49

0

0

Westland, MI

Apr 26, 2004

#1

• Apr 26, 2004

• #1

Hey has anyone ran a 430 gear in their 99-2004 Mustang GT? I blew up my rearend with a 410 on stock internals, and I'm replacing it all with either 31 or 33 spline axles with either an auburn pro diff or detroit truetrac differential. Im also adding upper and lower control arms and subframes, and I seen Bill Putnam's car on feature rides a 2000 GT runnen 430 gears with a similar setup turnen 12.91's on slicks. I got Strange adjustable shocks and struts too. The only thing im afraid of is getten into that 5th gear down the track and I kno I will with a 430..........Any advice or experiences would help out greatly!

 

KaPPaBaLL

New Member

Nov 28, 2003

1,326

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0

BAYAREA

Apr 26, 2004

#2

• Apr 26, 2004

• #2

i have 4.30's. You won't be needing 5th don't worry. how'd you screw up your rear end anyway? did you dump the clutch at a high rpm??

 

9

99StanGT

New Member

Apr 2, 2003

49

0

0

Westland, MI

Apr 26, 2004

#3

• Apr 26, 2004

• #3

Well it was a number of things. I really run my car hard when its out......I think i blew it by dumpen the clutch and heaten the tires up at a light when i was racing my friend, and it took a few days and it got worse and worse. I ended up blowing the carrier bolts and cracked the diff directly in half.....i got it as a paper weight on my desk now! Last year i ran nittos and slicks so it was only a matter of time before i weakened and blew it.........your runnen a 430 how do u like it?

 

F

fastback brian

Founding Member

Jul 15, 2002

540

0

0

So Cal , I.E.

Apr 26, 2004

#4

• Apr 26, 2004

• #4

4.30's here also, If your engine doesnt rev past 6000 then you will need a taller tire , 27-28. Eaton should be prefered over a auburn for drag racing or go with a detriot locker. 31 spline superior axles seem to be the best all around and have a 5 year warranty. And go with a T/A cover with arp studs.

 

KaPPaBaLL

New Member

Nov 28, 2003

1,326

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0

BAYAREA

Apr 26, 2004

#5

• Apr 26, 2004

• #5

99StanGT said:

your runnen a 430 how do u like it?

Click to expand...

it's a great gear. Best bang for the buck out of all the choice of gears.

 

scalder

Member

Aug 1, 2003

375

0

16

Dallas/Plano TX

Apr 26, 2004

#6

• Apr 26, 2004

• #6

I just went from 4.10's to 4.30's after snapping an axle at the track and absolutely love em!

 

Gumby

New Member

Apr 7, 2004

21

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0

Urbandale, IA.....for now!!!

Apr 26, 2004

#7

• Apr 26, 2004

• #7

I've seen a lot of people with 4.30s run into 5th gear at the track?!

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Apr 26, 2004

#8

• Apr 26, 2004

• #8

All the major n/a racers on these boards use 4.30 gears. I'll be putting 4.30 gears in my auto very soon. I was so tempted to go with 4.56's.

 

Mustang92

SN's #1 1%er

Jun 6, 2001

6,467

2

79

South Florida

Apr 26, 2004

#9

• Apr 26, 2004

• #9

Gumby said:

I've seen a lot of people with 4.30s run into 5th gear at the track?!

Click to expand...

Is that a statement or a question?

On a stock tire you will run out of gear at about 104-105 MPH. With a 26x8.5 slick you can go up to 108-109 MPH in 4th before running out of gear. Or you can just move the rev limiter up to 6200 RPM or so to get you some more room at the top end of the track.

Bill

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Apr 26, 2004

#10

• Apr 26, 2004

• #10

Mustang92 said:

Is that a statement or a question?

On a stock tire you will run out of gear at about 104-105 MPH. With a 26x8.5 slick you can go up to 108-109 MPH in 4th before running out of gear. Or you can just move the rev limiter up to 6200 RPM or so to get you some more room at the top end of the track.

Bill

Click to expand...

Wow. Its been forever since I've seen you post over here.

 

drgn5.0

Founding Member

Mar 13, 2001

603

0

0

May 8, 2004

#11

• May 8, 2004

• #11

screw superior axles, get mosers if your gonna buy.