96GT...4.10's and auto??

wil5.0 · July 30th, 2011, 11:10 AM

Just bought a 96 GT w/auto trans. I'm new to the modular world so I wanted to get some input on something. Correct me if I'm wrong but I believe the trans is the 4R70W. I always thought that the limit with this trans was 3.55 gears...if I went any higher I was told the trans would act crazy and not know how to shift properly. But now I've joined this website and see that 4.10's is the the most popular gear to go with in an auto trans car. Are you guys having to reprogram something or get a custom chip burnt to run 4.10's or have I been told wrong about the trans acting crazy. Also I'm use to the regular AOD trans where you have to change the speedo gear for the speedometer to be accurate....is this the same for the 4R70W trans as well?

p4ndiamond · July 30th, 2011, 03:38 PM

I have 97
4r70w
4.30 gears
All you need is a speedcal and a sct tuner later to make the shift points perfect. i love it and would not pick another gear .
3k rpm @ 70mph

98REDGT · July 31st, 2011, 08:40 AM

Can you get by without the tuner for a while? Or is the driveability not good?

BadassSN95 · July 31st, 2011, 10:53 AM

You can get by for alil while without the tuner but it will make it a ton better with the tuner cuz you can fine tune the shift point perfectly!

OptionalStang · August 1st, 2011, 02:35 AM

i have 373's in my car...i think the past owner put them in,i doubt it came factory like that..i always thought it had 337 butg i could be wrong , lol i bought some 373's and found it had them in there...but anywyas the 373's seem perfect for a dailydriven car..the less you drive the more id step them up..

July 30th, 2011, 11:10 AM	#1
wil5.0 Regular Join Date: Jul 2011 Posts: 114 iTrader: 0 reviews	96GT...4.10's and auto?? Just bought a 96 GT w/auto trans. I'm new to the modular world so I wanted to get some input on something. Correct me if I'm wrong but I believe the trans is the 4R70W. I always thought that the limit with this trans was 3.55 gears...if I went any higher I was told the trans would act crazy and not know how to shift properly. But now I've joined this website and see that 4.10's is the the most popular gear to go with in an auto trans car. Are you guys having to reprogram something or get a custom chip burnt to run 4.10's or have I been told wrong about the trans acting crazy. Also I'm use to the regular AOD trans where you have to change the speedo gear for the speedometer to be accurate....is this the same for the 4R70W trans as well?

July 30th, 2011, 03:38 PM	#2
p4ndiamond Hardcore Enthusiast 1997 Pacific Green Cobra 14.80 No traction Join Date: May 2010 Location: New Orleans Posts: 1,216 iTrader: 0 reviews	I have 97 4r70w 4.30 gears All you need is a speedcal and a sct tuner later to make the shift points perfect. i love it and would not pick another gear . 3k rpm @ 70mph __________________ GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA "

July 31st, 2011, 08:40 AM	#3
98REDGT Regular Join Date: Dec 2010 Posts: 275 iTrader: 0 reviews	Can you get by without the tuner for a while? Or is the driveability not good? __________________ 1998 GT. Headers with catless X-pipe into flowmasters. CAI. Cobra wheels 17x9 with 245/40's and 17x10.5 with 275/40's. 04 GT leather interior.

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July 31st, 2011, 10:53 AM	#4
BadassSN95 Regular 1996 Mustang GT 5spd Join Date: Jul 2011 Location: Lewistown, Pa Posts: 112 iTrader: 0 reviews	You can get by for alil while without the tuner but it will make it a ton better with the tuner cuz you can fine tune the shift point perfectly!

August 1st, 2011, 02:35 AM	#5
OptionalStang Banned 1997 cougar 4.6 1/2PI TooFast4theFUZZ Join Date: May 2011 Location: se wi Posts: 991 iTrader: 1 reviews	i have 373's in my car...i think the past owner put them in,i doubt it came factory like that..i always thought it had 337 butg i could be wrong , lol i bought some 373's and found it had them in there...but anywyas the 373's seem perfect for a dailydriven car..the less you drive the more id step them up..

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