I thought I'd share with you all some more of this topic. I contacted 5 vendors / manufacturers tech centers and asked for help & guidance and shared with them all the following information. I found it curious that only one (speedway) asked for an angle and an installed height and the application. All the others only wanted the extended & collapsed measurements! So the following is what was sent to the companys e-mail.

That's great cause I do need some help! The shocks came out of my 34 ford, glass bodied coupe

I don't have an angle as I already have the shocks out but I could probably come up with a number if we must. The same with the "mounted" position... but here's what info I do have...

I'll start with the fronts.
Extended = 13" mount bolt center to mount bolt center, Collapsed = 10" same Center to center
Stroke appears to be 3.750" hard to be accurate as it has a rubber snubber bushing in the con rod.
!/2" bearing mounts top and bottom, spring I.D. = 2.5" , and the spring is 10.5" long.

The rears
Extended = 14.75" center of mount bolt to center of mount bolt., Collapsed = 9 7/8" the same center : center.
4.5" stroke, 5/8" poly bushing mounts top & bottom.
Spring ID = 2.5" ID and 10.75" long.

It's an old total performance frame from CT. Kugal IFS front and Currie 9" rear.

Thanks for the help and I look forward to hearing from you!

Well, I thought I'd share the experience as someone may find it beneficial and I know it's a learning experience for me!