Need help/advise on front suspension

[PGSigns]

Looks like the spindle is 73 to 87 with the 1 1/4" thick rotors. The ball joints should be the same for 71-72 as the later spindles. The tie rods are not the same but there are ways to fix it. Here is a link from the 60 to 66 FAQ section that gives lots of information on what parts can be mixed and matched to get a rolling disc brace system. Give it a read and it will help you with understanding the ways to swap stuff in these trucks.
http://67-72chevytrucks.com/vboard/s....php?p=4450757
For what was on your truck the 73 and up spindle would have been a bolt in. Taking some time to see what have before ordering parts helps with these old trucks. Many stories about what folks find previous owners have done.
Jimmy
Jimmy

[1969 Project]

Lot's of good info, thanks! Now I am a little confused as far as the caliper, will my brake calipers fit the new rotors?

[lolife99]

Originally Posted by PGSigns

Looks like the spindle is 73 to 87 with the 1 1/4" thick rotors. The ball joints should be the same for 71-72 as the later spindles. The tie rods are not the same but there are ways to fix it. Here is a link from the 60 to 66 FAQ section that gives lots of information on what parts can be mixed and matched to get a rolling disc brace system. Give it a read and it will help you with understanding the ways to swap stuff in these trucks.
http://67-72chevytrucks.com/vboard/s....php?p=4450757
For what was on your truck the 73 and up spindle would have been a bolt in. Taking some time to see what have before ordering parts helps with these old trucks. Many stories about what folks find previous owners have done.
Jimmy
Jimmy

This is not exactly correct.
The 71-72 and 73-87 share the same LOWER balljoints, but not the upper.
They are unique to each year as are the outer tie rods.
Not sure how you can look at a spindle and tell what year it is, since the same castings are now being used to make the conversion 60-62 and 63-70 spindles as well as the 71-72 and 73-87 HD spindles.

The only way I know FOR SURE to identify a spindle is to know what year upper ball joint or outer tierod it takes.
That's the only thing that is different between all the years of C10 spindles.
That usually requires a trip to the parts store with your spindle.

[1969 Project]

I installed the the new 71-72 spindle on my existing ball joints however the outer tie rod does not fit to the new spindle, that is the part that is throwing me off. I was planning on replacing inner and outer tie rods anyway so I was just going to make thos 71-72 as well but I believe the center link will not work with he 71-72 inner tie rod as I believe the holes on my center link are smaller. It wouldn't be too big of a deal since I am there I can just change out the center link as well. Does anyone know if this will affect the fit of my current pitman and idler arm? Or would it be easier if I just returned the spindle and get the correct one?