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Old 02-11-2011, 07:53 PM
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GM Transmission questions

Hey everyone, please pardon the ignorance on this question, as i am a Chrysler guy.

My son has a 79 Monte Carlo, 3.2 V6, yes a 200 CID, I assume it has a TH200, It is toast, needs a new front seal and probably a rebuild as the engine has 190,000 miles on it.

We are planning a 350 transplant for it. I was going to get a TH350 for the 350, but will it bolt up to the V6 in the mean time so he can drive the car while we are building the 350?

Are the tail shafts different? Will we need a shorter driveshaft? any good info out there?

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Old 02-11-2011, 09:25 PM
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T200 and T350 are the same length and spline on the output shaft. You will have to move the mount and crossmember. The TV cable for the T200 will not fit the T350. Get one for the T350. Be sure to get a torque converter for the T350 that matches your engine
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Old 02-12-2011, 01:16 AM
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The TH200/200C 3-speed Trans mount is in the same location as the TH350 w/6" Tail.
The TH2004R's 4-speed mount is much further back, about 5-9/16".
It's a direct swap, just need the Detent Cable, Bracket and Line/Hose for Vacuum Modulator.
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Old 02-12-2011, 01:30 PM
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TH350s come in three different tailhousing lengths. The short one is a bolt-in swap.
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