Looking for k5's w/ 10" or more

[BrownK5]

since i lifted my k5 10", it will break the rear u joint @ the t case every 3 days or so if im lucky, other wise less then that. my t case is dropped 1", driveline is lengthened, and it has 4" angled blocks. the pinion angle almost straight, and that one never busts. its just the one @ the t case . has anyone experienced this? how have you fixed it? i cant keep bustin this stuff, its my DD

 

[blazinzuk]

First let me stress that you must be very carfull when doing this. But I think your yoke is screwed up. You need to spin it real fast to look at it while it is spinning. Pull the driveshafts put the truck in gear and crawl underneath. BOTH DRIVESHAFTS MUST BE REMOVED. If the yoke is wobbling you know the problem. I have about 10" of lift, I rewelded the perches on at the proper angle and I replace my u joint once a year whether it needs it or not. I have never needed to replace them more often. My t-case is not dropped at all either

 

[BrownK5]

O btw i just put new yokes on the rear output, and the rear pinion. do you have a cv driveshaft? did you have to grind away any material from the driveshaft so it doesnt hit the yoke?

 

[Citizen Rider]

You are eigther binding, or your yokes on the shaft are out of phase(this is what happened on mine)

 

[85mudblazin]

You NEED a CV with that much lift.
NO way a standard single joints shaft will work on a K5.

 

[blazinzuk]

You NEED a CV with that much lift.
NO way a standard single joints shaft will work on a K5.

Strange works pretty good on mine. Yes I ground a little not much but my angles are exactly right. What does the u joint look like after it explodes could you snap a picture for us. Also I ate up a cheap u joint from Checker in about a week my neapcos are great get a good u joint. More details please

 

[hookbook]

I have a 78 k5 with a 10" lift. All i did was get my driveline longer. I got new u-joints for it. I have 8" lift with 2" blocks on back and haven't had a problem with it so far. But it has only been two months. Went muddin twice and no problem still.