GM TH200C three speed trans

Bad Medicine Racing

Frequent Racer
Jan 8, 2010
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Grove Oak, AL
Anyone have any old TH200C transmissions laying around they are going to toss? They are the puny little 3 speeds that came in the late 70s cars, usually behind the small V8s. They look similar to a TH350, but are a little smaller. I am wanting the servo cover, servo, and apply pin out of one or two of them. It is easy to remove, just pop a snap ring on the right side behind the cooler lines, and it all pulls out. I would like them to be pretty much free (imagine that lol). LMK what you have!
 

SSedan64

Dragway Regular
Oct 5, 2009
948
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MACON, GA.
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Bad Medicine Racing

Frequent Racer
Thread starter
Jan 8, 2010
431
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Grove Oak, AL
SSedan64 said:
Don't for get those don't use the Cushion Spring and will create a 2-1 downshift bang/clunk when used in the 2004R Trans. Superior's Billet Super Servo also does this.
There're also a few different sizes that came in the 200/200C.
The #'s & Sizes are here: 134/112 cover piston combo is largest.
Thanks for bursting my plan :p ...I wanted to keep it on the dl so everyone would practically give some of them to me thinking they were junk. I already have one in my 442 and it just firmed the shift up good. No harsh downshift. But the trans is pretty much worn out. I need one more for the 200-4R we have to go in my Dad's 1965 442.
 
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10secBu

MalibuRacing Junkie
May 21, 2003
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Westminster, MD
Th200 is a popular trans in NHRA stock eliminator as they have lower parasitic drag compared to the th350 & th400. Scott McClay is one of the top builders for the th200.

Not that it matters, just wanted to give one good use for the trans.
 

Bad Medicine Racing

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Jan 8, 2010
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Grove Oak, AL
I have one in stock minus the servo, cover, and apply pin if anyone it interested in it then! I always thought they were only good for scrap metal.
 

SSedan64

Dragway Regular
Oct 5, 2009
948
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MACON, GA.
Not really a bad Trans, the Lockup TC is what gave all the trouble & it screwed up the Trans. :lol:
TH200/200C Info >>
Most of the 200/200C's have been scrapped now. Many 2004R users have switched to Billet Servos so they have the Cushion spring.
I'll check with a guy I know that may have one. Probably just cost S/H.

Also check with Witt, $5.57 for the whole Assembly. ;) Just give them the #'s you need.
 
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Bad Medicine Racing

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Thread starter
Jan 8, 2010
431
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Grove Oak, AL
Strange they have three servos. My 200-4R had the one pictured with all the springs and the 3rd accumulator. The 200 I swiped the servo out of was only the servo, a big spring and the apply pin. I tossed the spring in the tool box and slapped some washers in its place and slammed it in the trans. I wish it shifted just a bit harder so I could get a nice chirp from the tires on the 1-2 shift. But it is definitely bearable now. It is nice and quick on the shift and not dramatic in anything it does.
 

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