went to the Beck site. you seem to have your choice 4-cyl swing axle.
ok - that's consistent with the original, no complaints there.
i know we have some people here with more or less familiarity with the frame.
would it be possible to convert to IRS using 6-cylinder power and 914 trans/diff?
914 content: i have had an offer to buy my /6 shell and if i could find an interesting (far future) project for the driveline it'd make that option more attractive...