Technical 1952 Styleline control arm

Hello all. I’m new to the site and have been lurking for a bit. I recently acquired a 1952 Chevy Styleline and am in the process of rebuilding the front end.

I am trying to install the lower control arms and am struggling with the outer bushing installation. I get them about halfway and they get incredibly tight, effectively impossible to turn further. Clamped in a vise, clamped to the bench, using an 14” wrench (and I am not a small guy); no luck. I could put a cheater bar/pipe on, but feel like something will break eventually.

The lower control arm is original, but the hinge and outer bushings are new (kit from Chevs of the 40’s).

Suggestions? Options?

Appreciate any advice.
Kevin

 

Maybe this will help.
https://www.chevytalk.org/fusionbb/showtopic.php?tid/218134/

 

Appreciate that, but that is the thread I have been following for reference. It says they are tight, but that is still pretty subjective.

 

Sounds like maybe the repop part is to blame. What does Chevs of the 40s have to say?

 

If I remember correctly the nuts on the arms are a “jet nut “ the nut is slightly oval . Real tight to get on as it’s a locking nut type deal .

the threads are real fine , could they be damaged causing interference?


Either way it is tight . But like you said tight is subjective .

 

Would heating the control arm help?

How about thread lube, never seize?

 

Thanks for the replies and suggestions. I avoided lube since the thread I am following explicitly states not to use any (and if I understand the bushings do rely on interference like Vandenplas said).

I was eventually able to overcome the problem by only turning each side ~1/8th turn and then moving to the other side, I did end up using a 24” ratchet, and gained some additional torque, and got everything seated. Slow process but got there.

All control arms are installed and now onto the spindle supports which are bringing their own set of challenges. Quite a learning experience for a newbie.