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**ohboy321** · 03-19-2017, 07:19 AM

I also have a K10 with a 70 drum brake axle. I had looked into what was needed to do the conversion and found that 70 and 71 axle shafts were shorter and had smaller u-joints than 72 and up D44 axles, so for my truck I would need parts from 71 to do the change over to disks.

Here is a link to the Spicer Dana axle data: http://docslide.us/documents/spicer-dana.html

I used it to reference the parts differences between years of manufacture. If I decide to do it I will look for an axle out of a 72-78 and swap the entire thing so I get the beefier shafts, disks, and still be able to run with a D44.

This site here also had some good research info: http://d44tech.com/index.html

As davischevy mentioned, there are other threads discussing the subject that can also be helpful.

03-19-2017, 07:19 AM	#4
ohboy321 Senior Member Join Date: Aug 2015 Location: Dunbarton, NH Posts: 289	Re: 1970 disk conversion. I also have a K10 with a 70 drum brake axle. I had looked into what was needed to do the conversion and found that 70 and 71 axle shafts were shorter and had smaller u-joints than 72 and up D44 axles, so for my truck I would need parts from 71 to do the change over to disks. Here is a link to the Spicer Dana axle data: http://docslide.us/documents/spicer-dana.html I used it to reference the parts differences between years of manufacture. If I decide to do it I will look for an axle out of a 72-78 and swap the entire thing so I get the beefier shafts, disks, and still be able to run with a D44. This site here also had some good research info: http://d44tech.com/index.html As davischevy mentioned, there are other threads discussing the subject that can also be helpful.