Brisk281GT said:I think 99+ Auto trans' are all the same. The Auto GT's are a lot better than they used to be. 14.3-14.5 in the 1/4mi if I am not mistaken.
DBMSTNG said:the 4R70W auto in the 99+ GT's are a HUGE improvement over the 5.0L autocrapics.
Well, for me itd be better if the shifts were neck snapping quick but its alright stock. You can modify the valve body by doing a Jerry Mod to it. Quick shifts and all the goods.. best part its freeSrpera said:How are the shifts in a 99+ Automatic? I had to put a TransGo shift kit in my 95 Automatic to even drive the thing. Can I live with the stock shifts in the 99+ Automatics?
........?d98gt said:They aren't shift (it's an automatic.. not 5 speed)
But they get the job done
Dark Knight GT said:The 99-04 automatic GT's have the 4r70w automatic transmission. Its total standard gear ratio is 2.84:1 and the "w" in 4r70w means "wide banned". It is a solid transmission and can uphold to a great deal of power and abuse.
For a solid 4r70w transmission, I recommend the following upgrades:
Transmission cooler
Jerry mod shift kit or custom valve body
High stall torque converter(anything less than 2800rpm stall is a waste).
Custom tune or sport chip to set the shifts and line pressure for good performance.
Combine this with a set of 4.10 or 4.30 gears, you'll have a basically unbeatable drivetrain.
Too Slow said:i don't know about them being able to take alot of power. my friend ran at the track like the 3rd time on a 100 shot in his 01 auto and it totally freaked up.
FR-S8N said:mine has been taking a beating for 3 and a half years already. at the track and on the street.. just that on the street i manually shift it when i race.
i even took it Auto Xing 2 times and i manually shifted during the whole 10 minute runs. so i thinkthat they're pretty strong. no signs of messing up, shifts fine at WOT, and transmission fluid hasn't been changed in 30k miles and it still looks new when i check it. oh.. and my car already has 78k miles.
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