First off, I have to bring myself to realizing you are really thinking of doing this with a real 356SC. O'well it's your car!
The fronts are a bolt on, with bearing changes to the appropriate axles (ball joint and or link pin styles). Don't know that part #'s anymore.
The rears can only be swapped from 1952ish to 67ish Porsche 356 swing axle to VW short swing axle, ending 1967. 1968 beetle swing axle and later IRS axles have a longer axle spline section. This doesn't mean as an example, that you can't put 356 drums on a 1972 IRS VW rear end, it simply means you have to do a little more home work.
I wrote this joyously read..., a few years ago, just never posted it anywhere.
________________________________
- Putting Porsche 356A Aluminum Drums on an VW type1 IRS axle -
First off, this is just an idea and hasn't been built yet, this is all in my mind, and very little if any is on paper. My intent
is to put a set of 356A drums onto the back of a VW IRS axle. In doing so, the following is a list of the problems that I
can think of as follows.
Drum nose length to short for the IRS axle -- Since I was unable to source / locate anybody that is manufacturing a
VW IRS axle roughly 1" shorter than stock. A 1" thick X 3" Dia. spacer will be needed. The 3" Dia. is just a number,
it well match the width of the nose / bolting surface of the 356A drum which is bigger than the nut, and then will step
down to the nut. What I came up with for this, was to take a VW type1, 4 lug drum and cut it down to my 1" thick
spacer that will have the axle splines already in the middle of it. This will look far more aesthetically pleasing than a
stack of washers on the axle against the drum. This center section serves a couple of purposes, it gives a little extra
Axle-to-Drum-to-SpacerWithSplines-to-Axle-to-Nut grip. This is a concern of mine. I say this only because I've seen
356A drums, cleaned of all of the splines that have been used, on semi high hp VW swing axles before. I also choose
the location of the spacer to be on the outboard side of the drum against the axle nut surface because the spline length
of the drum is very short and prone to loosening of the nut. Putting an additional spacer on the axle at the CV flange
end, before going into the bearing housing, might look better from the outside, but again, my feelings are that with the
outboard spacer matching the bigger outside dia. of the drum-to-nut surface, this I felt would keep the hole unit more
securely in place, and be less prone to loosening.
Last -- The fact that I'll piss a few Porsche purist off, that just don't want me to do this with these brakes, like anything
else, that's a to be expected. So my question to you the reader is. What else can you think of, that I haven't in tackling
this problem..., If you've done this conversion, I'd love to hear from you.
________________________
Heres a link to a better pic.
http://community.webshots.com/photo/526070220/541629385JJymSb
David