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Old 03-26-2020, 04:29 PM   #5
71CHEVYSHORTBED402
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Join Date: Feb 2009
Location: Northern Nevada
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Re: What needed hardware, torque converter to flex plate

Notes for my 71 C10 with 402/400TH. The bolts are original:

Ensure the converter spins freely until it’s mounted onto the flex plate.

If the torque converter is seated correctly after that transmission has been mounted to the engine block, then there should be an approx. 1/8” gap between the contact points on the converter and flex plate. Pull the torque converter forward to the contact points, ensure the torque converter spins in this position and then mount it.

The torque converter mounts to the flex plate using three (GR 5) 9/16" flange bolts. The bolt threads are 3/8-16 x 9/16. NOTES: One bolt is stamped "TR" and the other two are stamped "RBM". The bolts were torqued to 40 ft. lbs.
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Tony
71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025
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