Technical 51 fleetline suspension parts

Ey There,

I just picked up a 51 fleetline in amazing condition.
It hasn't been driven since 1984 and has great patina.
Anyway I started working on the frond end, the kingpin and the idler arm need replacements.
I just wanted to know if the MEVOTECH MS50951 wil fit the fleetline.
On ebay some sellers say it does, summit doesn't say it will.
The MEVOTECH MS50951 is a kingpin kit for a 51 styleline and I wanted to know if that has a different suspension than the fleetline.

Thanks!

 

IIRC, the suspension components are the same for either model.

 

I don't trust those "See if it fits" results. I just Google the part number and do my own research...