850 subframe drop and suspension rebuild

[Chuck W]

I was under the impression #53 and #50 are the same, but #48 differs. Being wrong here is definitely a good thing, though, as it's one less thing to consider.

I assume you mean #43 and #50? (Not #53 and #50)

Grab all of the fasteners for the big mid-brace. All of the bolts at the front (the rear SF mount) are longer than the standard bits.

The front V-brace will require adding some sort of threaded inserts to mount it to the subframe. Rivnuts are an option, if you have the proper tool.

Go for the Delrin SF bushings.

[hipcheck]

That c70 stiffener will give 10 extra HP while waiting at the stop,light

Harness the kinetic energy, I like that

[Chuck W]

We have the mid braces on both of our cars, and I did notice a difference in the chassis stiffness. It was slight, but quantifiable.