67' C20 manual to auto trans, Turbo 400 conversion, drive shaft length?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

irishtrucker · 03-05-2016, 08:17 PM

New here, so hopefully I'm posting in the right forum. I have a 67 Chevy C20. Originally 3 speed transmission (3 on the tree). I've purchased a TH400 (automatic) for conversion. I have the trans installed. Now comes the hard part - the drive shaft. Since the truck obviously isn't drive-able, wondering A. Do drive shaft specialist come out to measure? If so, does anyone know of a trust worthy operation in Los Angeles (323 area) or B. Can I measure it myself?... and how do I do so with accuracy (starting point, ending point)? Help. I'm lost.

03-05-2016, 08:17 PM	#1
irishtrucker Registered User Join Date: Mar 2016 Location: LOS ANGELES Posts: 3	67' C20 manual to auto trans, Turbo 400 conversion, drive shaft length?? New here, so hopefully I'm posting in the right forum. I have a 67 Chevy C20. Originally 3 speed transmission (3 on the tree). I've purchased a TH400 (automatic) for conversion. I have the trans installed. Now comes the hard part - the drive shaft. Since the truck obviously isn't drive-able, wondering A. Do drive shaft specialist come out to measure? If so, does anyone know of a trust worthy operation in Los Angeles (323 area) or B. Can I measure it myself?... and how do I do so with accuracy (starting point, ending point)? Help. I'm lost.

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