Front Coil Springs

[Leo B]

Hi. I found Moog variable springs for 1963 from Avantiparts. I understand that "variable" is same as progressive spring and works soft > tight. I dont know the height.

https://avantiparts.biz/coil-springs-h-d-front-avanti-63-to-85-526134/

Standard Avanti -63 springs are 526135 and the free height is 14 5/8 (by SI). My old ones are 526135*MC and maybe old which makes them about 1/2" shorter.

Do you have experience how Moog ones work? Do they change stance/rake comparing standard ones?

[Dwight FitzSimons]

3 hours ago, Leo B said:

Hi. I found Moog variable springs for 1963 from Avantiparts. I understand that "variable" is same as progressive spring and works soft > tight. I dont know the height.

https://avantiparts.biz/coil-springs-h-d-front-avanti-63-to-85-526134/

Standard Avanti -63 springs are 526135 and the free height is 14 5/8 (by SI). My old ones are 526135*MC and maybe old which makes them about 1/2" shorter.

Do you have experience how Moog ones work? Do they change stance/rake comparing standard ones?

It looks like these are the Moog CC655 springs, originally for the back end of GM cars from the 1980s or '90s.  For a while there was quite a bit of discussion on the SDC Forum on these.  Reports on them seemed to be all positive.  One comment was that they might raise the front end of a Studebaker (depending on the engine).  There is/was a lighter duty version of these springs, but I can't recall the number of those.

--Dwight