‘83 K5- driveshafts reinstallation without match marks?

[BlazerBill]

I’m going back together with my ‘83 K5 with 4” suspension lift after restoration and I cannot locate the match marks that I made on the driveshafts (both front and rear) and yokes when I removed the driveshafts to replace the U-joints. What should I do? Thanks!

 

[Grit dog]

This could be a totally irresponsible response, but I’m sure I’ve re-installed driveshafts and u joints without matching up. I don’t think it matters?

 

[CalSgt]

Like @Grit dog said... I'd probably just run it.

If it vibrates in 2wd consider reorienting the rear joint at the slip yoke.

If no vibes in 2wd but has bad vibes in 4wd I don't think I would bother with trying to rebuild the front double cardan again, there's probably 4 different ways that sucker can be assembled and they're a PIA.

Your other option is to take the shafts in for balancing, I don't suspect they would charge you too much for that service.

 

[SquareRoot]

50-50 odds. I put brand new balanced shafts in incorrectly and didn't notice any difference. Just make sure the yokes are phased correctly.

 

[BlazerBill]

What do you mean by “phased correctly”?