73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: pedigo78 on January 07, 2012, 02:00:44 pm

Title: Driveshaft binding
Post by: pedigo78 on January 07, 2012, 02:00:44 pm
So my 85 k20 front driveshaft is binding just a little. I was under the truck doing some work and decided to rotate the shaft, and saw that it hit the yoke on the transfer case. (this is my front shaft) my transfer is a np205, so do i need a clocking plate, or what
Title: Re: Driveshaft binding
Post by: Jason S on January 07, 2012, 03:44:33 pm
How much lift do you have?  If the driveshaft is at such an angle that it's hitting the yoke, you're likely to trash it off road.

Does the front driveshaft have a constant velocity or double cardan joint at the transfer case? If not, a CV front shaft may gain you a little bit of extra clearance.
You can spacer the rear crossmember to gain a little bit more room.  If you drop the crossmember, you have to be careful to make sure you don't jam the engine distributor against the firewall and that the whole crossmember setup is sufficiently supported (heavy duty hardware, steel spacers and the like)

Those are a couple thoughts off the top of my head.  I'm sure others out there have some good ideas.
Title: Re: Driveshaft binding
Post by: bake74 on January 07, 2012, 06:59:59 pm
How much lift do you have?   
  .

     x2, need more info to be able to help.  If it binds while on the ground and not flexing, then you do have a big problem.
Title: Re: Driveshaft binding
Post by: Irish_Alley on January 08, 2012, 04:30:07 am
if you can rotate the shaft its not binding, it may appear to be touching but the clearance on some parts is very small. with only 4" lift your good i have 6" and dont need any clocking plate
Title: Re: Driveshaft binding
Post by: pedigo78 on January 08, 2012, 01:10:47 pm
Thanks guys, I will have to get under and check it out a bit more.