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The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- 4x4 Projects and Builds (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=141)

- - Crash's 69 K10 (https://67-72chevytrucks.com/vboard/showthread.php?t=494599)

Crash_OK

07-03-2013 09:56 PM

Re: Crash's 69 K10

Yesterday, thanks to McBassin, I got the AC charged, we never really got the vacuum pulled down to where we liked and when you turned the pump off the pressure reading on the digital gauge Mike was using would go up, but then it attempted to stabilize around .052 psi absolute. We did put about 180 psi of Nitrogen in the system and did not see a leak with that pressure, but we did not leave it on the system very long.. Not sure if I have a leak or not.. it blew really cold air both yesterday and today, so time will tell.

I think I know what the vibration that I have having between 53 to 62 mph is. I noticed the rear u-joint was making a little noise, like the needle bearings needed lube. I installed a new u-joint at 600 miles, and I need a new one now at 1700 miles. I thought the first one might have been caused by me not greasing it after I installed it, but it appears I have another problem.

I did some research (http://www.pirate4x4.com/tech/billav...ft/index2.html) and learned that pinion angle can cause this issue. Below are my results..

http://i284.photobucket.com/albums/l...inionangle.jpg

It appears that my pinion angle is at an acceptable level.

I decided to look everything over and found a problem with the differential yoke.…
One side of the yoke is wore were the u-joint rides. Looks like the u-joint may have been loose in the past and ate away the locating tab.

http://i284.photobucket.com/albums/l...1/P7030398.jpg
http://i284.photobucket.com/albums/l...1/P7030401.jpg

http://i284.photobucket.com/albums/l...1/P7030399.jpg

http://i284.photobucket.com/albums/l...1/P7030400.jpg

Have any of you seen this before, and do you believe it could cause the needle bearings to fail in a u-joint with a little over a 1000 miles on it? Either way I need to repair it…

Tomorrow I am going at to McBassin and see if he has a good yoke I can use..

mud.man.rj

07-03-2013 10:11 PM

Re: Crash's 69 K10

See a yoke that that quite a few times, prob just get week over time and torque.

Crash_OK

07-03-2013 10:12 PM

Re: Crash's 69 K10

Quote:

Originally Posted by mud.man.rj (Post 6155770)

See a yoke that that quite a few times, prob just get week over time and torque.

Thanks..

Have you ever seen it cause u joint failure in ~1000 miles? Maybe I should not say failure.. it still worked, but it did burn up the needle bearings..

Zoomin

07-03-2013 10:35 PM

Re: Crash's 69 K10

That's definitely a premature death. Good luck finding a yoke.
Posted via Mobile Device

Crash_OK

07-03-2013 10:36 PM

Re: Crash's 69 K10

Quote:

Originally Posted by Zoomin (Post 6155815)

That's definitely a premature death. Good luck finding a yoke.
Posted via Mobile Device

Thanks Steve..

mud.man.rj

07-04-2013 01:39 AM

Re: Crash's 69 K10

I have seen it happen twice now and not ptiing down your work by any means but the out of three I have seen 2 of them were not installed correctly and the u joint cup was not totally in the pocket and the u joint cap was tightened down so it never sat flush with both sides down, the 3rd on had too much play in the yoke and just a bit wore out so the u joint would actually slide back and forth and hit one side then slide the other way until the tab broke off other than that the only thing would actually be that maybe a needle bearing was out of place or damaged per factory, as defective.

Crash_OK

07-04-2013 06:56 AM

Re: Crash's 69 K10

Quote:

Originally Posted by mud.man.rj (Post 6156129)

I believe the problem with this one is the 3rd one you listed above. That was what I was attempting to show in the pictures. The tab that locates the u-joint on the yoke is wore down about a 1/8 of a inch on one side... Hopefully I can find a good at McBassin's this morning.

Thanks..

71Sixer

07-05-2013 07:02 AM

Re: Crash's 69 K10

If you have trouble finding a new yoke, you should find what you need here.

http://www.dennysdriveshaft.com/c258..._hardware.html

67c10rustbuket

07-06-2013 01:23 AM

Re: Crash's 69 K10

Dang that yoke is beat up a little bit, I have been known to shred some U joints in a previous vehicle but that was because I had a bad pinion bearing and thought it was a bad U joints causing the problem. Well I was the one causing the problem doing too many burn outs back in the day...

FRENCHBLUE72

07-13-2013 08:54 PM

Re: Crash's 69 K10

Great looking truck it sure turned out nice congrats.. It only took me about a week to get through the whole build thread.. I'm not sure if its just the pics or my anal retentiveness but you may wanna swap the reverse lenses from side to side to see if they fit better;)..

Crash_OK

08-04-2013 10:26 AM

Re: Crash's 69 K10

Quote:

Originally Posted by 71Sixer (Post 6157600)

If you have trouble finding a new yoke, you should find what you need here.

http://www.dennysdriveshaft.com/c258..._hardware.html

Thanks for the link.

Crash_OK

08-04-2013 10:30 AM

Re: Crash's 69 K10

Quote:

Originally Posted by 67c10rustbuket (Post 6159067)

LOL.. I am sure this truck had been abused in a similar manner in the past... So far I have put over 600 miles on the new yoke with no problems..

Crash_OK

08-04-2013 10:30 AM

Re: Crash's 69 K10

Quote:

Originally Posted by FRENCHBLUE72 (Post 6171599)

I think you are right.. thanks...

Crash_OK

08-04-2013 11:30 AM

Re: Crash's 69 K10

Crash_OK

08-04-2013 11:46 AM

Re: Crash's 69 K10

Zoomin

08-04-2013 02:03 PM

Re: Crash's 69 K10

It keeps getting better and better!

Crash_OK

08-04-2013 09:50 PM

Re: Crash's 69 K10

Quote:

Originally Posted by Zoomin (Post 6204356)

It keeps getting better and better!

Thanks Steve.. I think so as well.. Need to get the seats done, have Kyle finish his magic when he gets some time.. take it to a car show or two.. and then drive the hell out of it. We drove it over 250 miles today.. it is so much fun..

With that said, I am looking for my next project.. keep a eye out for a 67-69 Camaro for me..

Zoomin

08-04-2013 10:01 PM

Re: Crash's 69 K10

Oh, I'm always on the prowl for something good... :)

driller35

08-05-2013 03:32 AM

Re: Crash's 69 K10

Wow the truck turned out awesome , Congrats and enjoy the ride, just wondering on your steering box setup, does the 77-79 gear box bolt rite in or needs mod, as I find the same with my stock one ,is way to loose and would like a tighter feel
Thanks really enjoyed watching your project

Crash_OK

08-05-2013 05:39 AM

Re: Crash's 69 K10

Quote:

Originally Posted by driller35 (Post 6205424)

Thanks..

Every thing bolts up except for the steering coupler (rag Joint). You will need one from the same year.

hgs_notes

08-05-2013 10:47 AM

Re: Crash's 69 K10

This truck turned out great. The paint is unbelievable.

driller35

08-05-2013 12:56 PM

Re: Crash's 69 K10

Thanks Mark , will track one down and update , I belive the wild horse ride u experience is very much from the short wheel base of truck and no weight to the truck either , mine is the same , I would like to ride in a stock 4x4 suspension setup and see how much difference there is, screamin did one hell of a job on that paint

Cheers Lloyd

screaminchevypickup

08-05-2013 01:31 PM

Re: Crash's 69 K10

Looks great mark!!
Posted via Mobile Device

71Sixer

08-06-2013 09:53 PM

Re: Crash's 69 K10

Crash
Did you use the original tie rods from the pitman arm to the steering knuckle? I have the same lift kit on the truck I am building and I ordered the same drop pitman arm, but the stock tie rods that I ordered do not work. They are too long and will never line up.

Crash_OK

08-06-2013 11:09 PM

Re: Crash's 69 K10

Quote:

Originally Posted by 71Sixer (Post 6208410)

Yes.. I replaced them, but they were the same as the ones I took off..

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