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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Rear Drivelines, Drive Axles and Gearing => Topic started by: buter1ma on December 22, 2019, 01:15:37 PM

Title: Driveshaft Help
Post by: buter1ma on December 22, 2019, 01:15:37 PM

I have a 86 C10 long bed with two piece driveshaft. I am going to swap in a 700R4. Will I need to go to a one piece or what length from trans to center support bearing do I need?

Title: Re: Driveshaft Help
Post by: Irish_Alley on December 24, 2019, 08:21:09 AM

depending on what trans/tail shaft you have now you may or may not have to do anything
(http://forum.73-87chevytrucks.com/smforum/index.php?action=dlattach;topic=37791.0;attach=51451;image)

Title: Re: Driveshaft Help
Post by: buter1ma on December 24, 2019, 09:25:04 AM

Its is a three on the tree manual transmission. I believe the length will have to change.

Title: Re: Driveshaft Help
Post by: JohnnyPopper on December 26, 2019, 03:25:14 PM

I doubt your 3-speed is 30" long, but I have seen some with a long tail section.

Is the output shaft the same in size/splines? May not be...

Title: Re: Driveshaft Help
Post by: VileZambonie on December 27, 2019, 08:30:34 AM

Use this website as a tool and to find an inexpensive option. Use a one piece shaft.

http://www.car-part.com/cgi-bin/search.cgi