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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: chevyride on September 26, 2006, 10:07:00 PM

Title: Axle swap
Post by: chevyride on September 26, 2006, 10:07:00 PM

I have a 1979 k10 4x4 shortbed that I am building. I recently bought a 1981 3/4 ton longbed. I would like to put the 3/4 ton axles under the 79. Will I have to make any modifications or will the 1981 3/4 ton axles bolt directly to my 79? Also the 79 has a 12 bolt and the 81 has a 14 bolt (9.5 ring gear). Will this cause any problems?

Thanks, Dustin    

Title: Re: Axle swap
Post by: roundedline on September 26, 2006, 10:07:00 PM

Yoke/driveshat will be different on the axle side for the 14bolt.
Front should be a 10bolt for both.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

Title: Re: Axle swap
Post by: Swallie on December 07, 2006, 04:20:00 PM

they make a u-joint so you can use a 1/2 ton drive shaft on a 3/4 ton rear end....other than that its a direct bolt in....

Title: Re: Axle swap
Post by: joesgarage71 on December 11, 2006, 02:49:00 PM

That be 1330 Joint(1/2 ton) to a 1350 Joint(3/4 ton) Conversion.