Dana 20 Two Different Style Yokes?

[posulli88]

I am rebuilding my Dana 20 Transfer Case. I am almost done and about to install my yokes and just realized I have a CV style 10 spline yoke (rounded sides) on the front and Standard 10 spline Yoke (flat sides) on the rear. Both yokes were attached to the drive shaft and u joint with U bolts. Both front and rear drive shafts have the same slip yoke style ends.

Is this right? Should they both be standard yokes?

[J20 project]

Pics? don't know of any cv style w/ ubolts.


J20...

[Heavy_Metal_Thunder_81]

Front shaft and yoke should be CV (double cardan) style.

[posulli88]

[IMG]

[/IMG]

First image: Left yoke was on the front output, right yoke on rear output on tc
Second image: Front drive shaft
Third Image: Rear drive shaft

[acct21]

Dana made/makes a version of the D20 yoke with ubolt retention instead of caps/bolts. The ones you have would have been added later (not factory).

[posulli88]

Based on the photos of the drive shafts should I just have two standard 1310 10 spline yokes?

[Heavy_Metal_Thunder_81]

Based on the photos of the drive shafts should I just have two standard 1310 10 spline yokes?

No, you should have a 1310 u-bolt rear yoke and a 1310 CV yoke for the front with CV shaft

[posulli88]

Ok so my front shaft is not a CV shaft correct based on the photo (so its been modified)? Will its current set up cause problems?

Sorry for the stupid questions I just do not know much about drive lines.

[J20 project]

You are probably fine until you run much of a lift kit. The cool thing about T18 is that you can run a larger shaft than the th400 equipped rigs. I can't tell how big your front shaft is but it normally would still be 1.25 in tube and 1.25 in spline. You could be larger on both.

[posulli88]

You think I am ok to run the front drive shaft as is (which is wrong): 1310 CV yoke with u bolts, with no Double cardigan for a little bit until I can get a CV driveshaft?

As it sits now everything was fitting together, and I was only running it in 2wd on the rear.

[J20 project]

You just need to look at it real hard and see if you are binding or rubbing in the bottom of the yokes at the t case. Possible vibration due to angle? I don't remember if you were lifted. How long is your shaft anyway?

[posulli88]

I am not lifted. Its at stock height and has 31's on. shaft length is approximately 26" center of u joint to center of u joint.

[Heavy_Metal_Thunder_81]

If you're only running 4wd, why not just leave the front shaft out until you can find a correct one?