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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: timothy.pontius.69 on February 25, 2014, 09:42:21 am

Title: 10 bolt rear to 12 bolt rear swap
Post by: timothy.pontius.69 on February 25, 2014, 09:42:21 am

I have a 1987 g20 chevy van with a 10 bolt open rear I want to swap
it for a 12 bolt rear with posi out of a 79 chevy van .....will this work
without spending alot of money to make it work

Title: Re: 10 bolt rear to 12 bolt rear swap
Post by: dvdswan on February 25, 2014, 12:48:02 pm

you shouldn't have any issues as you are using another van axle.  only thing I am unsure of would be the u-joint but one would think that they didn't change that.

BTW, welcome to the site from the PNW.

Title: Re: 10 bolt rear to 12 bolt rear swap
Post by: bake74 on February 25, 2014, 05:06:15 pm

Quote from: dvdswan on February 25, 2014, 12:48:02 pm

you shouldn't have any issues as you are using another van axle.  only thing I am unsure of would be the u-joint but one would think that they didn't change that.

BTW, welcome to the site from the PNW.

     They are not the same, the 12 bolts u-joint is bigger.

Title: Re: 10 bolt rear to 12 bolt rear swap
Post by: Captkaos on March 04, 2014, 08:52:40 pm

What is the reason for the swap, if it is for strength it is a waste of time...