TH350 rebuild tech

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(Intermediate clutch clearance)
(Variations of the TH350 family)
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==Variations of the TH350 family==
 
==Variations of the TH350 family==
There is also a TH350C and TH250C version that has a lockup torque converter (TCC). Look for the end of the input shaft to have a smooth polished end with O-ring on it. The case has a "C" cast into it, and there will be an electrical plug adjacent to the shifter shaft on the driver side of the tranny.  
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There is also a TH350C and TH250C version that has a lockup torque converter (TCC). Look for the end of the input shaft to have a smooth polished end with O-ring on it, similar in appearance to the 200C/2004R and 700R4/pre-LSx 4L60E. The case has a "C" cast into it, and there will be an electrical plug adjacent to the shifter shaft on the driver side of the tranny. Same also holds true with the oil pump - "C" is cast into the pump cover and pump half.  
  
 
Don't confuse the TH350C with a TH350 '''non'''-lockup tranny with a screwed-in electrical connector on the ''passenger'' side of the case. This is a pressure switch that was used ~1972-'73 for the Transmission Controlled Spark (TCS) system. This disabled the distributor vacuum advance in all gears except high gear, and is a single wire switch threaded into a pressure port near where the cooler lines are located. In the case of this switch, you can either leave it in place, unused- or remove it and plug the port.  
 
Don't confuse the TH350C with a TH350 '''non'''-lockup tranny with a screwed-in electrical connector on the ''passenger'' side of the case. This is a pressure switch that was used ~1972-'73 for the Transmission Controlled Spark (TCS) system. This disabled the distributor vacuum advance in all gears except high gear, and is a single wire switch threaded into a pressure port near where the cooler lines are located. In the case of this switch, you can either leave it in place, unused- or remove it and plug the port.  

Revision as of 04:41, 26 October 2016

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