67-72 C/10 Lower A-Arm Differences
 

What's the difference in lower A-arms?

I'm not sure there is a difference. The ball joints changed in 71. I put the 71 ball joints in my 69 a-arms without any problem. The bushings are the same part number between 69 and 71.

I am curious too. I have read posts where some turning radius is lost with dics spindles on older trucks. Anyone know?

The stops are different so the radius is shorter I just cut mine to match the newer one as I had it together before I found Out .. Good Luck

I have 71 lower arms on my 69, so I havent run into the problem myself........but have talked with several guys that have. The 71-up balljoints will fit in the 67-70 arms, but the steering stops differ & will shorten the turning radius. If you have the truck assembled, you can grind the stops on the spindles, or modify the stops on the arms. Good luck....crazyL:)

Anyone have any further info or pics. The thing is I have access to an A-arm off a pre-71, and I will be able to do any necessary adjustments to the arm while it's off. I'd appreciate any further info I can get on this........Thanks

ANYONE??

I don't have any pics, but I'll have to go along with what crazylonghorn had to say on the subject.

This much I do know. My '72 LWB truck (all factory front disc/rear drum) has a much tighter turning radius than my '67 SWB truck (presently 6-lug, 4 wheel drum brakes).

I couldn't vouch for what lower A-arms that the '67 has on it.

I WILL be changing out the front suspension in favor of that off of a '72 plus adding ECE drop spindles and front anti-sway bar - real soon.

From what I've been able to gather the length of the upper and lower A-arms are the same from '67 to '72. The ball joints did change in either '71 or '72 but will still mount right into older A-arms without modding.

The difference is, therefore, the steering stops.

Don't know if I added anything, but I can hope.

Jeff
:flag:

Thanks truckstr! I will remove my old one, and take it with me to the junkyard and see what matches.