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Old 09-17-2018, 05:48 PM   #957
rgunlock
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Join Date: Jul 2009
Location: Tomball, Texas
Posts: 1,592
Re: My 78 K15 High Sierra build - Fish Tremble

Quote:
Originally Posted by swamp rat View Post
Well crap, if I had noticed the single yoke in a pic you posted I may have spoke up cause the NP205 has a double Cv type joint. Now if you do that your going to have to shorten the shaft length. Trying to install the shaft with the CV joint is a bear too! Least on my truck
Yea, I got myself into a bit of a mess using this NP205 I just installed. It's a bit older NP205 that came out of a donor '76 Blazer and the front output has a yoke for a 1310 (I believe) u-joint. The NP205 I just pulled out was the one that came in my '78 and it has a front output that is a flat plate with 4 bolt holes that a CV type joint connects to. This weekend I looked into just swapping between the NP205's but the currently installed is 10 spline and the other is 30 spline so no-go.

Looks like the '76 blazer would have come with a CV style joint as well, but the rearmost u-joint just goes into the yoke on the TC rather than terminating in a round flat bracket that bolts to the flat plate style TC "yoke". Not sure if that made sense. And it looks like that shaft may have to be cut shorter.

So, looks like I could go that route, or else swap my original NP205 back in. Not sure I can do that either because the input has to match the AA adapter coupler, but haven't looked into it yet.
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Rick

78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel
71 GMC C25 350/TH400 - Project Angie
59 Chevy SWB Stepside (next in line? Not sure now )
2001 GMC Sierra K2500
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