Can 75-87 C20 lower control arms be used in my 67 C10 if I change the ball joint?

[wesmigletz]

My left front lower control arm has a dent with a slight bow; the truck drove fine, but I'm not sure if it should be reused. I will be adding 71-72 disc brakes, and would be changing the ball joint and control arm shaft.

I found dorman and delco lower control arms available on-line. Can these be used on my 67 C10 1/2 ton if I change the ball joint? Will the 67 ball joint press into the c20 arm? Will I need to change the U bolts that mount the control arm?



https://www.summitracing.com/parts/MOG-RK620036

https://www.summitracing.com/parts/r...CABEgIPbvD_BwE

[LockDoc]

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I'm betting you can find your answer in this thread....

http://67-72chevytrucks.com/vboard/s...d.php?t=444823

LockDoc

[wesmigletz]

Originally Posted by LockDoc

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I'm betting you can find your answer in this thread....

http://67-72chevytrucks.com/vboard/s...d.php?t=444823

LockDoc

EDIT: After further research, it looks like the C10 and C20 have different lower ball joint hole sizes, but use the same control arm shafts.


Thank you for the link. I actually used that thread while gather pieces for the 71/72 disc conversion onto my 67. I got the correct 67 and 72 outer tie rods and adapter sleeve, and 71/72 C10 ball joints.

From a link in your linked thread:

Lower Ball Joint:
Grouped by Differences:
C10
*60-62
*63-70
*71-87
C20
*71-87

Control Arm Upper Cross Shafts:
Grouped by Differences:
C10
*60-62
*63-72
*73-87
C20
*63-87

Control Arm Lower Cross Shafts:
Grouped by Differences:
C10
*60-62
*63-72
*73-87
C20
*67-86


I went to rock auto, and the lower control arm shaft kits were the same p/n for 72 C10 and 72 & 75 C20, which should make them OK for my 67's crossmember's lower control arm U bolt saddles.

This leaves the ball joint as the variable, because C10 and c20 are different p/ns.

However, if 67-72 C10 and C20 control arms are the same, the replacement arms should work, and let me install a 71-72 C10 ball joint.

[wesmigletz]

Also, are Dorman 13503 the correct replacement U Bolts?

https://www.summitracing.com/parts/R...make/chevrolet

[mkmc69]

Originally Posted by wesmigletz

Also, are Dorman 13503 the correct replacement U Bolts?

https://www.summitracing.com/parts/R...make/chevrolet

Yes, those are the ones you want.

[wesmigletz]

Originally Posted by mkmc69

Yes, those are the ones you want.

Thank you. Found some on Rock Auto for a few bucks less than Summit. Go to the part number tab and enter 13503. They also had the Dorman 618102 Bearing Dust Caps...

https://www.rockauto.com/en/partsearch/?parttype=13471

[Grumpy old man]

Originally Posted by wesmigletz

Thank you. Found some on Rock Auto for a few bucks less than Summit. Go to the part number tab and enter 13503. They also had the Dorman 618102 Bearing Dust Caps...

https://www.rockauto.com/en/partsearch/?parttype=13471

Autozone/advance auto/ Orielly's why pay shipping ?

[BigBird05]

I always check Auto zone, and the rest of the locals and find that Rock Auto almost always beats them even with shipping.