V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

thm200c trany help

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Old Jul 23, 2001 | 04:41 PM
  #1  
V6camaroman's Avatar
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From: Apex North Carolina
thm200c trany help

what can i do to make my wimpy,stock thm200c 3 speed auto stronger in my 1982 firebird?
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Old Jul 23, 2001 | 08:47 PM
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
<font face="Verdana, Arial" size="2">Originally posted by V6camaroman:
what can i do to make my wimpy,stock thm200c 3 speed auto stronger in my 1982 firebird?</font>
I dont think it can be done. I had a 200c in my v8 1982 lg4 "same guts" I couldent find any shift kits or performance cluthces for it.
Your best bet would be to upgrade to a 700r4 at least you get another gear and they make performance kits for them.
SSC
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Old Jul 23, 2001 | 08:52 PM
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From: Apex North Carolina
thanks a million
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Old Jul 24, 2001 | 09:14 AM
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From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Go for as new of a 700r4 (4 speed) as you can... '84 was the "intro" year for v6's, and those trannies aren't that hot. GM just started making them, and improved their design as the years went on. 85-86 is better than an 83-84 700r4, in 1987 GM made most of the "longevity" improvements. Chances are if you snagged a 1987-up 700r4 from a junkyard, it would last the longest.

Make sure to get the trans from another 2.8 (or 3.1) V6, the transmission case was different for a V8 engine.

B&M (and other companies) sell a kit that converts the 700r4 to non-computer-control that you could get. I don't think your computer would be able to control the 700r4; I think the 200C works differently.


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!
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Old Aug 5, 2001 | 11:27 AM
  #5  
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SSC
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
Ok found this one today "who knew" I looked forever yet couldent find squat!
http://www.hptransparts.com/MM007.ASP?pageno=85

SSC

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