Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Info on TH700R4

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Old Mar 17, 2004 | 08:13 AM
  #1  
FastBack's Avatar
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Joined: May 2003
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
Info on TH700R4

where can i get some info on my 700R4 tranny? just curious.
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Old Mar 17, 2004 | 08:55 AM
  #2  
MdFormula350's Avatar
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From: Maryland; USA
well in stock form they suck

if u have an ok shifting tranny but want better performance heres we u should think about.

a decent sized tranny cooler, from like B&M

and then look into getting a transgo shift kit.

also a vette servo would be nice to have.

these things alone will add performance to the 700r4 and make it last longer.


they are a 4 speed tranny (last gear being overdrive)
in thirdgens they use a lock up converter, with a tv detent cable

https://www.thirdgen.org/techbb2/sho...0r4+gear+ratio

Last edited by MdFormula350; Mar 17, 2004 at 09:00 AM.
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Old Mar 17, 2004 | 11:09 AM
  #3  
FastBack's Avatar
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Joined: May 2003
Posts: 110
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
i think a b&m shift kit would be a good idea, what about drilling out the valvebody when i do that to get a little more snap out of the shifting? i am definatly gonna invest in a trans-cooler, cause heat really kill those TH700R4 trannys. do the trans-coolers come in different sizes? what size should i get if they do? i believe those are remote mounted right? just checkin. thanks again
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Old Mar 17, 2004 | 12:24 PM
  #4  
Kontrax's Avatar
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From: Moving to non emission state
Car: 86 Camaro
Engine: L98 350 bore .060 out, Carb power
Transmission: slusher 700 beatbox
TCI makes a nice one. they come in 3 different sizes and one thin profile version. they look great and from what i hear, they perform well too. are you running a stock engine or mild performance or what? the TCI should support you up too 400 HP. thats what they claim anyways
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Old Mar 18, 2004 | 07:52 AM
  #5  
FastBack's Avatar
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Joined: May 2003
Posts: 110
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From: Cedar Grove, Wisconsin
Car: 91' Firebird Formula WS6
Engine: 305 TPI
Transmission: TH700R4
i'm running mild performance, some mods but not many, not quite pushing 400hp yet, soon, very soon i hope
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