73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 6426yy on October 11, 2009, 10:57:06 am

Title: u joint problem
Post by: 6426yy on October 11, 2009, 10:57:06 am

I swapped in a 12 bolt from my old 80 truck into my 83.  I have the Neapco 3-3130 conversion joint but it is too short on the pinion side.  My pinion has lugs on the outside that locate the u joint and theres like a 1/8 inch gap.  Any ideas, part #'s?

Thanks

Title: Re: u joint problem
Post by: VileZambonie on October 11, 2009, 11:02:28 am

You may have to swap yokes and pinion seals or try another ujoint combo. Here's how I did mine when I built my new driveshaft..

http://forum.73-87chevytrucks.com/smforum/index.php?topic=7334.75

Title: Re: u joint problem
Post by: 6426yy on October 11, 2009, 11:17:12 am

Thanks but what yoke did you use?  Will the one off the 10 fit and then I could use the stock u joint?

Title: Re: u joint problem
Post by: VileZambonie on October 11, 2009, 11:35:53 am

I used a 10 bolt yoke but don't recall the application.... It was most likely a corporate 10 bolt.

Title: Re: u joint problem
Post by: Irish_Alley on October 12, 2009, 12:08:33 am

I would go to Napa and tell them what you need give them the two different applications they will be able to help you out

Title: Re: u joint problem
Post by: 6426yy on October 27, 2009, 08:18:44 am

FYI I had the right u joint, but my pinion is worn out.