Originally Posted by Alan l.
According to the ACS parts list there isn't a kit for the F10 528.
If there isn't a huge weight difference between the 535 and 528 then i would try using the 535 springs. The 550's have a different part number because of the V8's extra weight up front.
That is what I am ordering. 528ix is about 200lb lighter than 535ix.
I figure that is close enough.