[V8Vairs] upper link help needed

[Tom Zimmermann]

..I'm setting up my 65-500 with a stock Saginaw to try to figure out upper arms length and pivot points..transaxle will be the Renault NG9 with stock Corvair lower arms (for now..),,the diff spline-shaft uses a rollpin to retain the inner CV,and don't see this as being able to withstand shearing side-loads..anyone have ballpark dimensions to start me with? email me at tz145236 at yahoo.com or tz145236 at live.com  TIA...