CK5
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Why did I do this.......
- Thread starter GMC5.3
- Start date
The differential pinion is a good example of the fixed yoke. But in the center holding it on
What does the back of the transfer case yoke look like? (Fixed) Or no yoke there, just exposed splines? (Slip yoke)
What does the back of the transfer case yoke look like? (Fixed) Or no yoke there, just exposed splines? (Slip yoke)
Left Fixed, Right Slip
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Ah. Yes, your driveshaft itself should be able to grow and shrink in the length direction as the center section will be a splined slip.
I hadn't realized you had a fixed yoke on the T-case, my mistake.
Whether or not you need a longer driveshaft depends on how much overlap you have in the slip. If you pull on the slip far enough the two pieces of the driveshaft will separate and you'll have 2 half-driveshafts.
I'm about to find iut
Anything over a 4 inch lift usually needs longer driveshafts.... Sorry to say.
have you checked the pinion angle?
rampage
3/4 ton status
As said before, it depends upon to company making the driveshaft. They will tell you where and how to take measurements. And when you do this, have the truck load as it normally would be since this will compress the springs and change the pinion angle (things like bumper, spare tire, half tank of gas, etc.).
I'll second the nod for front range driveline. They did my rear shaft and it's very well built. They will tell you how to measure it up.
By what you had in the pic you are only off by less than a half inch. You should be able to pull it down to reach. It might be dry and don't want to move. Like the others have said, you need to see how much total slip you have. Completely collapse it and then pull it out as far as you can without separating the two. Measure the difference in length between extended and collapsed. Just because it reaches, don't mean it will stay put if the axle droops fully if the slip amount isn't enough or it bottoms out during compression.
Next issue will be the axle driveline angles. Again if you can make it reach with the lift the driveline angles are probably off. This will cause vibration. This could happen under load (acceleration) or coast (deceleration). If they are off by a bunch you'll know it. Best bet is measure it before you drive it.
Here's a link for simple instructions on how to take the measurement.
http://www.speedwaymotors.com/the-toolbox/setting-proper-driveshaft-angles/28855
You can get an app on your phone to take the reading if you can't find a magnetic angle finder. The apps can be a little clunky to use. Tremec Toolbox is one that actually gives you the instructions as you do it. It will require being parked on a level surface thought. The app can't compensate for the angle of a sloped driveway. On mine it would get confused. The other I loaded was Clinometer. It's just a basic level app, but gives a digital reading. It took the same reading as my magnetic angle finder after I fiddled with the settings.
By what you had in the pic you are only off by less than a half inch. You should be able to pull it down to reach. It might be dry and don't want to move. Like the others have said, you need to see how much total slip you have. Completely collapse it and then pull it out as far as you can without separating the two. Measure the difference in length between extended and collapsed. Just because it reaches, don't mean it will stay put if the axle droops fully if the slip amount isn't enough or it bottoms out during compression.
Next issue will be the axle driveline angles. Again if you can make it reach with the lift the driveline angles are probably off. This will cause vibration. This could happen under load (acceleration) or coast (deceleration). If they are off by a bunch you'll know it. Best bet is measure it before you drive it.
Here's a link for simple instructions on how to take the measurement.
http://www.speedwaymotors.com/the-toolbox/setting-proper-driveshaft-angles/28855
You can get an app on your phone to take the reading if you can't find a magnetic angle finder. The apps can be a little clunky to use. Tremec Toolbox is one that actually gives you the instructions as you do it. It will require being parked on a level surface thought. The app can't compensate for the angle of a sloped driveway. On mine it would get confused. The other I loaded was Clinometer. It's just a basic level app, but gives a digital reading. It took the same reading as my magnetic angle finder after I fiddled with the settings.
