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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: lpapa15 on August 14, 2010, 07:59:47 pm
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I own a 79 4x4 Cheyenne 3 speed manual I want to convert it to an automatic on the tree. I have the new steering column with the shifter on the tree and a new th400. is there any advice on the conversion? Manual to auto...
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you get the column linkage for the auto? Also gonna need the correct t-case adapter to go from a th400 to your t-case. There could be a difference in case length of the transmissions too which could mean drilling new crossmember holes or driveshaft work.
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You need the mount on the frame for the shift lever along with the linkages. you will need a different driveshaft and yoke alone with moving the crossmember.