Rallye Wheel Valve Stem Extension Length

What is the correct valve stem extension length (1/2" or 3/4") for a 70 E-Body Rallye wheel and what is the ball suppose to look like?

I don't know if this will help you or not but there is a photo here:

http://www.mmcdetroit.com/ICCA/References/Wheel_Info/#pop01

thats a good one ??
details details
heres what i used
there 3/4 not close to being oe gold or BJ type
but look good

Snoopy-3/4" long with the ball/end style like you posted.The info posted on the ICCA website is incorrect.They show the smooth style ball.There was a great post a year or so ago on this subject.

The extensions pictured in my post are the 1/2" 2660315. The extensions that Day2Runner posted are the new 3/4" 2401840.

Snoopy-The ones I have and what was deterimed at the time of the other post I was refering to,is part# 2660315.They are packaged in a clear bag with Chrysler Parts stamped on the bag along with the pentastar,etc.

Thanks for the info. The 70-71 Parts book lists 2660315 as a 1/2" extension.

I think I remember them measuring them from where the threads top out,or as to how much legnth they add to the stem,which 1/2" would be correct.

These should be what your after: I have them on my 69 R/T