73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Topic started by: raul7211 on October 08, 2019, 08:34:47 AM

Title: Spindle Help
Post by: raul7211 on October 08, 2019, 08:34:47 AM
Just removed my spindles and airbags, installing drop spindles and lowering springs - assuming all of what I removed has been there for years.  When I removed the spindle, the two 'rubber' pieces that are attached to the control arms (upper and lower) that pack grease are ripped and falling apart.  What is that part called so that I can replace it.  The 'screw' that moves (joint i guess) is fine, its the black rubber piece with grease that needs replaced.  Lack of terminology is killing me - thanks in advance!
Title: Re: Spindle Help
Post by: Da67goatman on October 08, 2019, 09:11:04 AM
I believe your talking about the ball joint boots being ripped.  If the ball joint itself isn't worn out, you can get replacement boots, but if the joint is shot, the new joint comes with a new boot as well.
Title: Re: Spindle Help
Post by: raul7211 on October 08, 2019, 09:54:30 AM
Yes, doing a little more research, it is the ball joint boot.  Thinking I should just replace the entire ball joint.  Now to figure out that piece :)
Title: Re: Spindle Help
Post by: JohnnyPopper on October 08, 2019, 11:00:13 AM
Depending on how many miles the ball joint have, you might re-use them with new boots.

Check for looseness, they should be hard to move.

On the other hand, while you have everything apart it would make sense to change them and remove all doubt.
Title: Re: Spindle Help
Post by: raul7211 on October 08, 2019, 11:27:13 AM
Thanks - they seem 'fine', not too lose, threads look good.  As far as replacing them, any tips on how to remove them?  There is so much grease and gunk I can't tell if they are bolted on or riveted/pressed.  Any help?
Title: Re: Spindle Help
Post by: JohnnyPopper on October 09, 2019, 12:37:26 PM
Lowers are pressed in, beat them out with a 5 pound sledge hammer.

Upper are riveted in, use a air hammer gun to cut the heads off while you use eye protection, actually a face shield would be better.

New uppers come with bolts.

Lowers can be air hammered in using a BIG socket that fits. However, the correct way would be to press them in.