General Motors transmissions

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(Automatic transmissions)
(Transmission identification by pan shape)
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{{Note1}}Be careful not to mistake a TH250 for a TH350. The TH250 looks almost identical to the TH350 externally- same size, same oil pan. But unlike the TH350, it has a band adjuster stud and lock nut on the passenger side of the case near the cooler lines, similar in design to the Powerglide. Usually found in 1974/75 Chevrolet Vega, Nova, Camaro when coupled to the Vega 4 or 250 inline six. Reintroduced in 1979 as an option for GM A, B, F, and G-bodies in response to the failure rate of the THM200 when used behind anything other than a 4 cylinder (coupled to the Buick V6 3800 engine or Chevrolet 90 degree V6 exc. the 4.3L) until 1984 (same as the 1974/75 design but incorporating a lockup torque converter (same as THM350C), a lightened sunshell with 3 drilled holes, low/reverse piston (with 8 cutouts), and auxillary valvebody (shared with the THM350C).
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{{Note1}}Be careful not to mistake a TH250 for a TH350. The TH250 looks almost identical to the TH350 externally- same size, same oil pan. But unlike the TH350, it has a band adjuster stud and lock nut on the passenger side of the case near the cooler lines, similar in design to the Powerglide. Usually found in 1974-'75 Chevrolet Vega, Nova, Camaro when coupled to the Vega 4 or 250 inline six. Reintroduced in 1979 as an option for GM A, B, F, and G-bodies in response to the failure rate of the THM200 when used behind anything other than a 4 cylinder (coupled to the Buick V6 3800 engine or Chevrolet 90 degree V6 exc. the 4.3L) until 1984 (same as the 1974-'75 design but incorporating a lockup torque converter (same as THM350C), a lightened sunshell with 3 drilled holes, low/reverse piston (with 8 cutouts), and auxillary valvebody (shared with the THM350C).
  
 
===Transmission dimensions===
 
===Transmission dimensions===

Revision as of 04:21, 20 October 2016

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