Lower A-arm shaft to frame fasteners; front end

[Gary B.]

[Tony S.]

Re: Lower A-arm shaft to frame fasteners; front end

Definitely lock washers on my 1966, car number 19200.

[Gary B.]

Re: Lower A-arm shaft to frame fasteners; front end

Tony,

Nix my next question. I answered it myself. The L. washers go against the head, because they can't go anywhere else Duh on my part.

Gary

[Tony S.]

Re: Lower A-arm shaft to frame fasteners; front end

😁 Exactly the same.

[Mark L.]

Re: Lower A-arm shaft to frame fasteners; front end

I believe the lock washers were replaced with lock nut in early 67...GM cost savings!

[Edward D.]

Re: Lower A-arm shaft to frame fasteners; front end

My 66 has lock washers under the bolt heads. If memory serves every one I've ever taken down to do lower arm bushings on has had lock washers under the bolt heads and a rectangular nut plate over for the two bolts.

[Gary B.]

Re: Lower A-arm shaft to frame fasteners; front end

I believe the lock washers were replaced with lock nut in early 67...GM cost savings!

Mark,

I think you're thinking of the single bolt & nut that is used on the aft side of the lower A-arm. GM did indeed switch to a locking nut, like a distorted thread nut, at some point in the C2 era, maybe '67. But initially it was a lock washer and regular nut.

Gary

[Gary B.]

Re: Lower A-arm shaft to frame fasteners; front end

Thanks to everyone who responded. I've talked with another person with photo documentation of a '66 Bowtie that shows the same thing, i.e., a lock washer is used against the bolt head, in contrast to what the '66 AIM shows. This is another good example of the AIM not always reflecting the reality on the production line.

Gary

[Mark L.]

Re: Lower A-arm shaft to frame fasteners; front end

Gary, I think you are correct!

[Gary B.]