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Old 11-13-2018, 11:53 PM   #7
ThreeQuarter
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Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,523
Re: TH400 output shaft

AussieinNC, that slip yoke is pushed all the way in. If I slide it out by 3/4" the length between the u-joints center to center is 70-1/2". The driveshaft that fit the old transmission and slip yoke is 72" long. The slip yoke would need to slide in another 1-1/2" to fit up the way the old one did. The attached pic shows the old one.
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Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
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