[VP1966SS]

I have a broken nut which holds down my Crane rocker Arm. I ordered a replacement, but it’s too large. My stud is 3/8”, and when I goodie the Crane numbers on the arm, I don’t get great feedback on the correct nuts. I have attached 2 pics, one of the rocker and one of the new nut and the broken nut. In the pic of the nuts, the broken one is on the right. Any feedback that you guys have, which would will help me in identifying the correct one to order, that would be great. Heads are GM 492, motor is a 406, car is a 66 Chevy II. Thanks all!

 

[62 NovaWagon]

Poly locks go by stud size not the type of rocker, you say you have 3/8 studs?, just buy standard 3/8 Poly Locks, if you run a stud girdle then you need the long ones.

 

[VP1966SS]

Thanks.. that is what I thought as well, but the new one I ordered and the broken one are both 3/8. The new is wider and a bit taller and will not fit into the rocker itself. If you look close at the pic, you will see the difference I am referring to.

 

[62 NovaWagon]

Yep, just get a duplicate to the one that's broke, don't necessarily have to be from Crane.