5.9MAGNUM EXH MANIFOLDS

True. The RH one fits great but the end studs have to be removed since each end of the Magnum manifold is much thicker than the LA versions and the stock end studs are not long enough.
The LH side....
IF you have manual steering and a column or floor type cable shifted automatic, the manifold might clear. The outlet points RIGHT at the clutch cross shaft in manual cars and at the cross shaft in '66 and later column shifted cars.